0 420

50-Precious Science Questions Especially Appearing for PSC Exams(03/01/2016-B)

The following are basic questions in Science section and most of them will appear for any of PSC online exams and other psc exams also ..Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.

  1. The scientist who discovered cell
    Ans:Robert Hook
  2. Father of Microscopy
    Ans:Leeuwen Hock
  3. Concept of tissue culture conceived by
  4. The scientist formulated Cell theory
  5. Fluid mosaivc model of cellwall was proposed by
    Ans:Singer &Nicolson
  6. Cell nucleus was discovered by
    Ans:Robert Brown
  7. DNA was first isolated by
    Ans:Fredrich Meischer
  8. Theory of spontaneous generation was disproved firstly
    Ans:Francesco Redi
  9. Modern hypothesis of origin of life was formulated by
  10. Origin of life was written by
  11. Chemical evolution theory was proposed independently by
    Ans: Oparin&Haldane
  12. Modern synthetic theory of Evolution was designated by
  13. Carbon assimilation in C3 plants was explained by
    Ans:Melvi Calvin
  14. TCA cycle(Tricarboxylic cycle) is known as
    Ans:Krebs cycle
  15. Fermentation is discovered by
    Ans:Gey Hussac
  16. Blood circuit in body was discovered by
    Ans:William Harvey
  17. Split genes were were discovered by
    Ans:Robert And Sharp
  18. Chromosome theory of linkage was put forwarded by
  19. Double Helix structure of DNA was put put forwarded by
  20. Central dogma of of molecular biology proposed by
    Ans:Francis Crick
  21. The term genetics was coined by
  22. The term ecology was coined by
  23. The concept of Ecological pyramids was developed by
  24. Father of Genetic Engineering
    Ans:Paul Berg
  25. The first nonfunctional gene was synthesized by
  26. Father of white revolution
    Ans:Varghese Kurian
  27. Father of Green Revolution
    Ans:Norman Bourlag
  28. Father of Green Revolution in India
  29. CT scan was first developed by
    Ans:Godfrey Hoursfield
  30. Medical use of MRI was first reported by
    Ans:Raymond Damadian
  31. Artificial pacemaker was first reported by
    Ans:Great Batch&Chardak
  32. Biologically inhabited part of the earth is known as
  33. Basic unit of biosphere is
  34. Where does ozone form in earth
  35. Which day is celebrated as ozone day
  36. Plants dry habitats are known as
  37. The pants that grow on another plant for shelter but are nutritionally independent are known as
  38. Epiphytes exhibit the intraction named
  39. Certain plants grow on the surface of animals are called as
  40. The interaction in which growth and survival of both populations is benefited is known as
  41. Each level of food chain is known as
    Ans:Tropic level
  42. Which is the first tropic level of any food chain
    Ans:Producers and Green plants
  43. The biome type where the annual rainfall is 200-350cm is known as
    Ans:Tropical rain forest
  44. The biome type where long cold winters are happened and rainfall less than 25 cm is termed as
  45. Which is the branch of forestry that deals with the establishment and cultivation of the forest plants
    Ans:Silvy Culture
  46. When did social forestry programme start
  47. When did chipko movement start
  48. Chipko movement was started by
    Ans:Sunderlal Bahuguna
  49. Bio diversity Act was passed in
  50. Project tiger was started in

0 528

50-Precious Science Questions Especially Appearing for PSC Exams(02/01/2016)

The following are basic questions in Science section and most of them will appear for any of PSC online exams and other psc exams also ..Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.

  1. Bhaskara I was a famous in the field of
  2. The density of milk is measured by
  3. Fountain pen was invented by
  4. The acid used in car battery is
    Ans:Sulphuric Acid
  5. The steam engine was invented by
    Ans:James Watt
  6. Sodium carbonate is commonly called
    Ans:Washing soda
  7. Brass is alloy of
    Ans:Cu and Zn
  8. Capillary action of liquid can be explained on the basis of its
    Ans:Surface Tension
  9. The branch of science deals with biology chemistry ,genetics and biochemistry is
    Ans:Molecular Biology
  10. Galvanisation of iron sheets is done by
    Ans:Zn plating
  11. Cellular organisms use —to carry the genetic information that direct the synthesis of protein
  12. Cariolis force arises due to
    Ans:Rotation of frames
  13. Which radioactive ray is more penetrating
    Ans:Gamma rays
  14. How many colours the sunlight spectrum has
  15. Which type fire extinguisher is used for petroleum fire
    Ans:Powder type
  16. Rayon is chemically
  17. Oology is the study of
    Ans:Bird eggs
  18. ISAC stands for
    Ans:ISRO satellite Centre
  19. The first atomic power station established in India the
  20. Hardness of diamond is measured in —scale is used
    Ans:Mohs scale
  21. The most common element in the earths crust by mass
  22. Who discovered vaccination
    Ans:Edward Jenner
  23. Who discovered uranium
    Ans:Martin Klaproth
  24. 916 gold means—carat gold
  25. Who discovered superconductivity in 1911
    Ans:Kamerlings Onnes
  26. 10,00,000 watts are called
    Ans:One mega watt
  27. The fear of women is known as
  28. The fear of men is known as
  29. The fear of crowd is called
  30. The fear of book is called
  31. The fear of going to bed is called
  32. Sodium was discovered by
    Ans:Sir Humphry Davy
  33. Electric lamp was invented by
    Ans:Thomas Alva Edison
  34. Bifocal lens invented by
    Ans:Benjamin Franklin
  35. Cement invented by
    Ans:Joseph Aspidin
  36. Laser invented by
    Ans:Dr.Charles H .Townes
  37. Electromagnet invented by
    Ans:William Sturgeon
  38. Rayon invented by
    Ans:Sir Joseph Swann
  39. Glider was invented by
    Ans:Sir George Caley
  40. Safety matches invented by
    Ans:J.E Lundstrom
  41. Radio valve invented by
    Ans:Sir J A Fleming
  42. The electro cardio graph was invented by
    Ans:William Einthoven
  43. Chronometre was invented by
    Ans:John Harrison
  44. Stethoscope was invented by
    Ans:William Stockes
  45. Spinning frame was invented by
    Ans:Sir Richard Arkwright
  46. Nylon was invented by
    Ans:Dr.Wallace H.Caothers
  47. Electric razor was invented by
    Ans:Jacob Schick
  48. The word robot was coined by
    Ans: Carl Chepek
  49. Radium was discovered by
    Ans:Marie and Pierrie Curie
  50. The existence of isotopes was invented by
    Ans:Frederick Soddy

0 517

50-Precious Science Questions Especially Appearing for PSC Exams(31/12/2015-B)

The following are basic questions in Science section and most of them will appear for any of PSC online exams and other psc exams also ..Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.

  1. The most abundant element in plants
  2. Polio Myelitus is caused by
    Ans:Entero virus
  3. Who was the inventor of Black Box Flight recorder
    Ans:David Warren
  4. The disease caused by the deficiency of Nicotinic acid
  5. Huntingsons disease affects
    Ans:Nervous system
  6. Alternating current is converted into direct current by using
  7. From which plant Asafoetida is prepared
    Ans:Fenula asafoetida
  8. The gas usually filled in the electric bulb is
  9. Auxine,giberellin and cytokinine are
    Ans:Plant hormones
  10. The type of mirrors used in the headlamp of cars is
    Ans:Parabolic concave
  11. In turmeric the usable part of the plant is
    Ans:Under ground stem
  12. Which protein in human blood contain iron
  13. Which compound causes itching while handling an elephant foot yam and colocasia
    Ans:Calcium oxalate
  14. Knot is used for measuring
    Ans:Speed of ship
  15. The rays used in the remote control of TV
    Ans:Infra Red rays
  16. Which of the following is a common constituent of Transistor
  17. The alkaloid present in tobacco
  18. The solid carbon dioxide is known as
    Ans:Dry ice
  19. Which animal produces tears without crying
  20. Which is known as August Fever
  21. Who first used the term Nanotechnology
    Ans:Nario Taniguchi
  22. Systolic pressure in Hypertension exceeds
    Ans:above 140 mm of Hg
  23. The hard parts of the plant body is made up of tissues
  24. Pyrometre is used for measuring
    Ans:Very high temparature
  25. Which is the most widely used food grain in India
  26. Crohns disease is a inflammation condition of
  27. Hypoinsulinism causes
    Ans:Diabetes mellitus
  28. Diabetes insipidus is a disease associated with the hormone
  29. Macrogenitosoma in children is caused by —hormone
  30. The deficiency of —causes adrenal virilism
  31. Multiple sclerosis is associated with damages on
    Ans:Central Nervous System
  32. Pink eye codition is also called
  33. The gas responsible for the smell of rotten eggs
    Hydrogen Sulphide
  34. Microtia is a disease associated with
    Ans:Hearing ability
  35. The mammal that identifies its path using its ear
  36. The plant which is known as poor mans wood
  37. Edward syndrome is a trisomy of —chromosome
    Ans:18th Chromosome
  38. Acid rain is due to the presence of
    Ans:Sulphur dioxide
  39. Vertigo is a major symptom of a disease of ear called
    Ans:Otitis interna
  40. Who categorized elements according to atomic number
  41. Batten disease is a disease found connected with
    Ans:A nervous system disorder in children
  42. Damage to language part of brain caused
  43. Which hormone deficiency causes cretinism in children
  44. The plant family that helps Nitrogen fixation
  45. The tendency of plants to grow towards light
  46. The catalyst used for the manufacture of Ammonia
  47. Which soil is most suitable for Paddy cultivation
    Ans:Alluvial soil
  48. How many seed leaves does a monocot plant have
  49. Pollination through bird is known as
  50. Mulberry growing is known as

0 625

50-Precious Science Questions Especially Appearing for PSC Exams(30/12/2015)

The following are basic questions in Science section and most of them will appear for any of PSC online exams and other psc exams also ..Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.

  1. When a body is in force fall under gravity its apparent weight will be
  2. The shape of water drops are spherical because of
    Ans:Surface tension of water
  3. Which is known as the metal of hope
  4. GMcrops means
    Ans:Genetically modified crops
  5. Downs syndrome is agenetic disorder associated with —pair of chromosome
    Ans:21st pair
  6. Centre of mass of a uniform spherical sphere is at
    Ans:At its centre
  7. What is the mode of nutrition of mushroom
  8. What is known as rock oil
  9. The smallest atom is
  10. The lightest metal in the periodic table
  11. Amalgams are
    Ans:Amalgams are
  12. Sonara-64 is a variety of
  13. Mercury sticks to the surface of the glass when it comes to contact with
  14. The gas emitted by plants during respiration is
    Ans:Carbon dioxide
  15. Cinnabar is an ore of
  16. The founder of Quantum Theory
    Ans:Max plank
  17. Keplers 2nd Law is a consequence of
    Ans:Law of conservation of Angular momentum
  18. Small pox is caused by
    Ans:Variola Virus
  19. The first disease that was eradicated from Earth through vaccination
    Ans:Small pox
  20. Albert Einstein awarded Nobel Prize for his contribution to
    Ans:Photo Electric Effect
  21. The mass of the same body in earth and in moon
  22. The weakest force out of the four fundamental forces
    Ans:Gravitational force
  23. The artificial geostationary satellites are having time period of
    Ans:24 hrs
  24. The acceleration due to gravity value at the centre of the Earth is
  25. Escape velocity of Earth
  26. Which constituent of light of the spectrum has the shortest wavelength
  27. Which organism converts milk into curd
    Ans:Lactiform Bacteria
  28. The working principle of a rocket
    Ans:Newtons Third Law
  29. Who discovered that combination of constituent colours give white colour
  30. John F.Kennedy is the name of a variety of
  31. A hereditary disease in which the blood does not clot is called
    Ans:Haemophilia or Royal disease
  32. Glossy objects are often stored with soft spongy materials Why
    Ans:To reduce impulsive force
  33. The element with atomic number 100
  34. Rajapalayam is related to variety of
  35. Hibiscus rosasinensis is the botanical name of
    Ans:Shoe flower
  36. The height above the ground which the artificial satellite to be projected to have a rotation time period of 24 hrs is
    Ans:36000 km
  37. The scientist who got Nobel Prize in both Physics and Chemistry
    Ans:Madam Currie
  38. The scientist who got Nobel prize for Physics two times
    Ans:John Bardeen
  39. The plant which has fruits but has no well developed seeds
  40. Who discovered radio activity
    Ans:Henri Becquerel
  41. Which ecosystems covers the largest area of the earths surface
    Ans: Marine Ecosystem
  42. The phenomina of Gravitational lensing can be explained by
    Ans:General theory of relativity
  43. The general trajectory of a projectile is
  44. The cyclones in Northern hemisphere is in anti-clockwise because of
    Ans:Cariolis force due to rotation of Earth
  45. The name given to the plant group in which individual plants grow on other plants without taking food from the host plant is
  46. Artificial heart was discovered by
    Ans:William Kolf
  47. Anti particles are those
    Ans:Which got same mass of particle but opposite charge
  48. Who gives the Theory for Gravitation as due to the curvature of space time
    Ans:Albert Einstein
  49. Universal law of gravitation was put forwarded by
    Ans:Isaac Newton

50. Which is the laziest mammal

0 459

50-Precious Science Questions Especially Appearing for PSC Exams(29/12/2015)

The following are basic questions in Science section and most of them will appear for any of the Kerala PSC exams in 2015 or PSC Exams in 2016.Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.

  1. Rectifiers are used to convert
    Ans:Alternating current to Direct Current
  2. Magnetism at the centre of a bar magnet is
  3. Who isolated insulin ,the hormone to control diabetes
    Ans:Frederick Banting and Charles Best
  4. The scientist who is known as Second Darwin
    Ans:Ernest Mayor
  5. Which element is known as little silver
  6. Blue green bacteria are also known as
  7. Who discovered Electro Cardiogram
    Ans:William Einthoven
  8. Red data book provides data on
    Ans:Endangered plants and animals
  9. What is hematite and magnetite
    Ans:Ores of iron
  10. The absorption of ink by blotting paper involves
    Ans:Capillary action
  11. The structure of atom was discovered by
    Ans:Niels Bohr
  12. Television signals cannot be received ordinarily beyond a particular distance due to
    Ans:Curvature of Earth
  13. Hyperglycemia is a condition associated with hormone
    Ans:Insulin Hormone
  14. Which part of the human body directly absorb Ozone
    Ans:Cornea of eyes
  15. What condition is caused by iodine deficiency during pregnancy and is
    characterized by stunted growth,deafness,and mental retardation in children
  16. Which element is required as a component of blood hemoglobin
  17. On a rainy day small oil films on water show brilliant colours .This is due to
  18. RADAR is used for
    Ans:Detecting and locating the position of objects such as aeroplanes
  19. Selenium deficiency leads to
    Ans:liver necrosis
  20. Which vitamins is essential for the absorption of calcium from the intestinal part
    Ans:Vitamin D
  21. Heavy alcohol consumption leads to
  22. Colour blind people cannot distinguish —-colours
  23. Struggle for Existence is one of the main concept of
    Ans:Darwinian Evolution Theory
  24. What is the colour of Ozone
  25. The rarest gas element in the atmosphere of Earth
  26. Who discovered Bacteria
    Ans:Antone van Leuwanhock
  27. Who is called as the father of first aid
  28. Which animal has the normal gestation period of 22-24 months
  29. Indhira Gandhi is the name of a variety of
  30. An instrument that can accelerate charged particles to high energy particles
  31. What is a super cooled liquid
  32. Who invented lift
  33. In the bionmeal systems of naming ,the first part of the name of a organism is
    Ans:Genus name
  34. The nucleic acid of AIDS virus is
    Ans:Single stranded RNA
  35. The main gas emitted during the combustion of petroleum fuels
    Ans:Carbone Dioxide
  36. Enzymes are basically
  37. Sound of frequency below 20Hz is called
  38. The temperature at which Celsius and Fahrenheit scales are equal
  39. Bradycardia is a condition of heart with
    Ans:Low heart beat
  40. Oedema is abnormal accumulation of tissue fluid beneath the skin and reason is
    Ans:Due to Kidney and heart disorder
  41. —are the medium of transport of Ascaris
  42. Kwashiorkor is due to deficiency of
    Ans:Proteins and essential fatty acid
  43. Scurvy is disorder due to the deficiency of
    Ans:Ascorbic acid
  44. Xerophthalmia is common children due to the deficiency of
  45. The founder of Electromagnetic Wave Theory
    Ans:Jamed Clerk Maxwell
  46. The particles with integral spin values are called
  47. The particle with half integral spin values are called
  48. The collision in with both kinetic energy and momentum are conserved are called
    Ans: Elastic collision
  49. The most of the mass of rotating wheels are concentrated at the rim because
    Ans:To increase the moment of inertia

50. The clock which cannot be used in spaceship orbiting round the Earth are
Ans:Pendulum clocks

0 364

50-Precious Science Questions Especially Appearing for PSC Exams(28/12/2015)

The following are basic questions in Science section and most of them will appear for any of the Kerala PSC exams in 2015 or PSC Exams in 2016.Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.


  1. Well defined nucleus is absent in lower organisms coming under
  2. Cholera is caused by a bacterium belongs to the group
  3. Light from the Sun reaches earth in nearly
    Ans:8 minutes
  4. Survival of the fittest is a theory of evolution put forward by
    Ans:Charles Darwin
  5. A compound which contains only Hydrogen and Carbon is called a
  6. The liquid used to preserve specimens of plants and animals
  7. Mass number of an element having 147 neutrons and atomic number 92 will be
  8. Auriscope is used to detect
    Ans:Ear disorders
  9. Descending order of the hierarchy of levels of biological classification is
  10. The response of a plant to heat is called
  11. All cells are derived from the existing cell is the part of —theory
    Ans:cell theory
  12. Mirage is due to
    Ans:unequal heating of different parts of the atmosphere
  13. Stars which appear single to the naked eye but are double when seen through a telescope are
    Ans:binary star
  14. The inherited traits of an organism are controlled by
  15. The most abundant element in the moon
  16. The gas formed when Potassium permanganate is heated
  17. The line that separates atmosphere and outer space
    Ans:Karman line
  18. Papiloma is the virus that cause
    Ans:Wart disease
  19. Which hormone is related to the disease Tetany
  20. The cell wall of plant cells is mainly composed of
  21. What type of mirror is used in the rear view mirror of automobiles
  22. Instrument used in submarines to view the surface of water
  23. Which has the biggest eye among the land mammals
  24. The most abundant metal in Earth
  25. The prolonging of sound due to reflection is called
  26. Who was the first to state that the earth revolves round the sun
  27. Who discovered Doppler Effect
    Ans:Christian Doppler
  28. The process of water becoming vapour is
  29. Which element has the lowest melting point
  30. Amount of water in the atmosphere is known as
  31. Visible part of sun is
  32. Which is known as the king of inventions
    Ans:Steam engine
  33. Ozone quantity is measured by the unit of
  34. Which element has the least ionization energy
  35. The word cell was first used by
    Ans:Robert Hooke
  36. Which plastids help plants in the process of photosynthesis
  37. What is the colour of light used in automobiles during snow fall
  38. Who discovered the bacteria that cause cholera
    Ans:Robert Koch
  39. The foundation of germ theory of disease was set down by
    Ans:Louis Pasteur
  40. The plants which is poisonous and also used as medicine
    Ans:Castor and datura
  41. Light year is a unit of
  42. The power of lens is stated in
  43. Nuclear sizes are expressed in a unit named
  44. The vitamin which is destroyed by heat is
    Ans:Vitamin C
  45. Chronic consumption of excess selenium can lead to
    Ans:Muscle weakness
  46. PH of pure water is
  47. Which trace mineral is a component of the enzyme that activates vitamin A in the eye
  48. The science of calculating the age of trees by counting the annual rings
  49. Brilliance of diamonds is due to the phenomenon of
    Ans:Total internal reflection
  50. Pa(Pascal) is the unit of

0 399

50-Precious Science Questions Especially Appearing for PSC Exams(27/12/2015)

The following are basic questions in Science section and most of them will appear for any of the Kerala PSC exams in 2015 or PSC Exams in 2016.Certain percentage of people start to study after PSC notification come ,but that will not help them to enter in PSC Rank list.


  1. Ancient chemistry was given the name Alchemy
  2. Which disease is caused by Micro bacterium Leprae
  3. Pepsin a digestive enzyme is produced in
  4. Ammonia is produced through
    Ans:Haeber process
  5. Which light has the longest wavelength
  6. The fast breeder nuclear reactor of India KAMINI is located at
  7. Number of films passing through a film projector in a second
  8. Which natural substance has least expansion
  9. Which bird is known as American Ostrich
  10. The blood cells in perform the function of transport of oxygen is
  11. 35Cl17 and 37Cl15 are
  12. Which is known as wonder metal brand metal of future
  13. Molecules responsible for the smell of fruits
  14. The instrument that converts mechanical energy into electrical energy
  15. One fathom is equal to —feet
    Ans:6 feet
  16. Which animal can produce two sounds at one time
  17. Which animal can produce two types of milk
  18. Common cold is caused by
    Ans:Rhino virus
  19. The minimum distance of reflecting surface from the source of sound for echo
  20. Which colour absorb the maximum amount of heat
  21. In an electric motor electrical energy is mainly to
    Ans:Mechanical energy
  22. Fathom is the unit of —
  23. Light year is a measurement of
    Ans:Stellar distance
  24. Very small time intervals are accurately measured by
    Ans:Atomic clocks
  25. One kilometer is equal to how many miles
  26. Kilohertz is a unit which measures
    Ans:Wave frequencies
  27. —-is used as a moderator in nuclear reactor
  28. —-is a positively charged particle emitted by a radioactive element
    Ans:Alpha ray
  29. The isotope of uranium capable of sustaining chain reaction
  30. Epoxy resins are used as
  31. Which is /are the important raw materials required in cement industry
    Ans:Limestone and Clay
  32. Two trains length 100m each crossing each other in parallel tracks with speed 54 km/hr the time taken for the crossing is
    Ans:6.6 sec
  33. Space Applications Centre is located at
  34. Vulcanised rubber was invented by
    Ans:Charles Good year
  35. A tangent galvanometer is to study the
    Ans: Strength of direct current
  36. The major ingredient of leather is
  37. Michael Faraday worked as an assistant under an eminent scientists whose name
    Ans:Sir Humphry Davy
  38. The instrument used to measure the concentration of salt water is the
    Ans: Salinometer
  39. Two balls with masses 10 kg and 100kg drops to ground from the same height which one hits the ground first
    Ans:Both will reach at the same time
  40. Dactylography is the study of
    Ans:Finger prints
  41. The response of a plant to touch is called
  42. The common name for potassium carbonate is
  43. Calcium oxide is commonly known as
    Ans:Quick lime
  44. A deviation of light passing from one medium to another is known as
  45. An apparatus for generation of atomic energy is called a
  46. A machine used for converting mechanical energy into electrical energy is called
    Ans:Generator /Dynamo
  47. Atomic energy commission located at
  48. Dynamics is the study of
    Ans:Moving bodies
  49. Statics is the study of
    Ans:Forces acting on bodies at rest
  50. The first American to orbit earth was
    Ans:John H Glen

0 463

50-Precious Science Questions Especially Appearing for PSC Exams(26/12/2015)

The following are basic questions in Science section regularlyappearing for PSC Examinations,so should not neglect any of the given below details because that should destine you to enter in the any of the rank list published by Kerala Public Service Commission .This questions frequently appearing for the PSC 2015&16 online Examinations too.

  1. Soda water contains —acid
    Ans:Carbonic acid
  2. Permanent hardness of water may be removed by the addition of
    Ans:Sodium Carbonate
  3. Which element was to be discovered first in the chromospheres of the sun
  4. Production of chlorofluorocarbons gas which is proposed to be banned in India is used in which of the domestic products
  5. Other than Caesium ,which element shows least electro negativity
  6. What percent of the mass of human body is Oxygen
  7. The gas filled in flying balloon is
  8. Sodium is kept under
  9. Which metal pollute the air of a big cities
  10. The filament of an electric bulb is made of
  11. Actinides are the elements with atomic numbers from
    Ans:89 to 103
  12. What are the ingradients of gun metal
    Ans:Copper ,Tin
  13. The chemical added to the odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of
  14. The age of most ancient geological formations is estimated by
    Ans:C14 method(Carbon dating)
  15. Bell metal is an alloy of
    Ans:Tin and Copper
  16. Water is a good solvent of ionic salts because
    Ans:It has a high dipole
  17. Atoms are composed of
    Ans:Electrons and nuclei
  18. The main constituent of pearls are
    Ans:Calcium carbonate and magnesium carbonate
  19. Who suggested that most of the mass of the atom is located in the nucleus
  20. Potassium Permanganate is used for purifying drinking water because
    Ans:It is an oxidizing agent
  21. In nuclear fission which particle is used to start the fission reaction
  22. Reading of a barometre going down is an indication of
    Ans:Cyclone and wind
  23. Gypsum is added to cement clinker to
    Ans:Decrease the rate of setting of cement
  24. The four blood groups were discovered by
    Ans:Karl Landsteiner
  25. The scientist who is known as father of modern biology is
  26. The type of glass used in making lenses and prisms is
    Ans:Flint glass
  27. Which wax is obtained from the petroleum
    Ans:Paraffin wax
  28. The basic building blocks of proteins are
    Ans:amino acids
  29. The atomic number of oxygen is
  30. Plant that eat insects are called
    Ans:Insectivorous plants
  31. The theory of special relativity was propounded by-
    Ans:Albert Einstein
  32. Plants that flower only once in their lifetime are called
    Ans: Mono carpic
  33. Fruits that are formed without fertilization are called
  34. Cellulose is present in the cell wall of
  35. The five kingdom system of classification was set up by
    Ans:Robert Whittaker
  36. The electrical resistance of a substance is zero the substance is called
    Ans:Super conductor
  37. The most abundant mineral in sea water
  38. Number of oxygen atoms in an ozone molecule
  39. What is the percentage of oxygen in the atmosphere of earth
  40. Yellow revolution is related to the increased production of
    Ans:Oil seeds
  41. Black lead is
  42. T*D is a variety of
  43. The temperature of human body in Kelvin Scale
  44. The compounds leading to the origin of life were
    Ans:Protein and nucleic acids
  45. The colour of sodium vapour lamp
  46. Which type of parasitism is related with sandal wood trees
    Ans:Partial root parasite
  47. Which element has the second highest density
  48. The second hardest natural substances
  49. Mirrors used by dentists to get the magnified view of teeth
  50. Root nodules of Pea plants has bacteria called

0 498

50-Precious Science Questions Especially Appearing for PSC Exams(N)

The following are basic questions in Science section regularlyappearing for PSC Examinations,so should not neglect any of the given below details because that should destine you to enter in the any of the rank list published by Kerala Public Service Commission .This questions frequently appearing for the PSC 2015&16 online Examinations too.

  1. Which bird egg that has the longest incubation period
  2. The element with highest boiling boint
  3. When a moving bus stops suddenly the passengers are pushed forward because of the
  4. The most abundant metal in human body
  5. Which isotope of carbon is used for Carbon dating
  6. Which is the only bird that can see blue colour
  7. Pure gold is—carat
    Ans:24 Carat
  8. Chemically respiration is
    Ans:Oxidation reaction
  9. Which is known as the the age of reptiles
    Ans:Mezozoic era
  10. The infective stage of Wuchereria bancrofti is
  11. New world hook worms otherwise known as
    Ans:Necator americanus
  12. Cycle of Ross is associated with a disease called
  13. Endo-erythrocytic cycle in Malaria is also known as
    Ans:Cycle of Golgi
  14. Eosinophilia is a pathological condition caused by —- count
    Ans:High Eosinophils
  15. Birth of Blue baby is a pathological condition associated normally due the entry of —and immunological reaction
    Ans:Rh factor of baby to mother ,by mother
  16. Graves disease is associated with overproduction of
  17. Overproduction of Parathermone causes the pathological condition
    Ans:Demineralisation of bones and teeth
  18. Atoms elements belonging to the same group of the periodic table have the same number of
    Ans:Valence Electrons
  19. The cause of periodicity in proportion is
    Ans:The recurrence of similar other electronic configuration
  20. During evaporation of liquid temperature
    Ans:temperature of liquid falls
  21. Stainless steel contains
  22. Bordeaux mixture which is used as fungicide in agriculture is
  23. Iron is manufactured from the ore
  24. Psoriasis an immune disorder with
    Ans:scaly patches on skin
  25. Lunar caustic is
  26. The number of periods in the periodic table is
  27. Which is known as philosophers wool
  28. Silver get tarnished in air due to the reaction of silver with
    Ans: H2S
  29. Variable valence is generally exhibited by
    Ans:Transition elements
  30. Penicillin was discovered by
    Ans:Alexander Fleming
  31. The metal present in insulin
  32. Natural rubber is
    Ans:Poly isoprene
  33. In the modern long form of the periodic table elements are arranged in the increasing order of
    Ans:Atomic number
  34. The elements with highest electro negativity value is
  35. The arm of a spanner is made longer because
    Ans:To increase the torque
  36. In Earth the value of acceleration due to gravity having the maximum value at
  37. Two trains moving parallel tracks in opposite direction with speeds 50 KM/Hr What is the velocity of first train seeing from the other
    Ans:100 Km/Hr
  38. Two trains moving parallel tracks in same direction with speeds 50 KM/Hr What is the velocity of first train seeing from the other
  39. The value of escape velocity of Moon is
  40. For getting maximum horizontal range the projectile should project with an angle of projection
    Ans:45 degree
  41. Who proposed Laws of Planetary Motion
  42. Who proposed the General Theory of Relativity
    Ans: Albert Einstein
  43. Non stick cooking utensils are coated with
  44. Carbon,diamond and graphite are carbon—-
  45. Ans:allotropes
  46. In fire works ,the green flame is produced because of —
  47. When washing soda applied to hard water ,the hardness
  48. Which gas is known as marsh gas
  49. LPG consists of mainly
  50. Air is a /an
    Ans:Methane ,butane and propane
  51. The most important ore of aluminium is

0 529

50-Precious Science Questions Especially Appearing for PSC Exams

The following are basic questions in Science section regularlyappearing for PSC Examinations,so should not neglect any of the given below details because that should destine you to enter in the any of the rank list published by Kerala Public Service Commission .This questions frequently appearing for the PSC 2015&16 online Examinations too.

  1. The most abundant element in Petroleum
  2. Which organic acid is realized by a bee when it sticks an organism
    Ans:Methanoic acid
  3. Bladder worms or cycticerus larvae are the larval forms of
    Ans:Taenia solium
  4. Blood flukes are the causative agents of
  5. Transmission of round worms ,ascaris through
    Ans:contaminated food
  6. The main function of B-cells are to produce
    Ans:Plasma cells
  7. The common secondary diseases that kill AIDS victims areand
    Ans:Karposis Sarcoma and Protozoan Pneumonia
  8. Rheumatoid arthritis is
    Ans:An autoimmune disease
  9. An ecosystem has two components which are they
    Ans:Biotic ad abiotic
  10. The purest form of carbon
  11. The metal used in Cyanide process to extract gold
  12. Eczema is an allergic condition affects
  13. Leucopenia is a blood condition in which
    Ans:Abnormal low count of WBC
  14. Interferon is a glycoprotein secreted by host cells when they are affected by
  15. Antiserum provides type of immunity to the recipient
    Ans:Temporary immunity
  16. Cholera is a bacterial disease caused by bacterial genus
  17. Name the major vector that transmit Dengue fever
    Ans:Aedes aegypti mosquito
  18. Which diarrhieal disease is caused by a bacteria called shigella
  19. Anaemia is caused due to the lack of
  20. The fastest reptile
    Ans:Spiny tailed Iguana
  21. Which element has the same crystalline structure of Diamond
  22. Which allotrope of carbon has lubricant property
  23. Chemical property of a metal is determined by
  24. Plant ash contains mainly
  25. The plant hormone that is abundant in coconut water
  26. The region where the presence of electron can be detected around the nucleus of an atom is called
  27. Kala Azar is a dreadful disease caused by
    Ans:Leishmania donovani
  28. Name the pathogen that caused Malignant Malaria
    Ans:Plasmodium falciparum
  29. Pork tapeworm is caused disease in man called
  30. Japanese encephalitis is transmitted by
  31. Electron was discovered by
  32. Botanical survey of India located at
  33. A chemical equation balanced according to the law of
    Ans:Conservation of mass
  34. In known element maximum number is of
  35. Which property of an element is always a whole number
    Ans:Atomic Number
  36. The lusture of the metal is on account of
    Ans:Reflection of light due to the presence of free electron
  37. The law which relates the solubility of a gas with pressure is
    Ans:Henrys law
  38. Kinetic energy of a molecule is highest in
  39. At what temperature the volume of a gas would become zero
    Ans:-273.15 degree celsius
  40. What are the soaps
    Ans:Sodium or potassium salts of heaviest fatty acids
  41. How does the common salt help in separating soap from the solution after saponification
    Ans:By decreasing solubility of soap
  42. In vulcanization natural rubber is heated with which element
  43. Deep blue colour is imparted to glass by the presence of
    Ans:Cobalt Oxide
  44. Glass is made of the mixture of
    Ans:Sand and silicates
  45. The device used to measure the depth of ocean sea and using sound waves
  46. The inert gas that possess radio active properties
  47. The primary function of plasma membrane is to
    Ans:Regulate the flow of materials into and outside the cell
  48. Annapurana is a variety of
  49. In termites the cellulose of wood is digested with the help of
    Ans:Protozoan living in the intestine of termites
  50. Semi conductor used for making integrated circuits