General Science mcq question sest for ssc,ntpc,cgl, wbcs 50 Question

Today topic is sGeneral Science mcq question sest for ssc,ntpc,cgl, wbcs . this will help all aspirants in exam conduct by ssc, wbpsc,rrb, this is in bengali language. .

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Today topic is sGeneral Science mcq question sest for ssc,ntpc,cgl, wbcs . this will help all aspirants in exam conduct by ssc, wbpsc,rrb, t

if you have any inquiry comment below. join our telegram channel for regular update.

What is latitude and longitude||types of latitude and longitude in map

1. What is the full form of LPG?

(a) Liquid Petroleum Gel

(b) Liquefied Propane Gas

(d) Liquid Propyl Gallate

2. The process by means of which we can smell fish being fried in a

neighbour’s home is called

(a) Effusion

(b) Diffusion

(d) Distribution

3. Out of the following, an example of matter which can be termed as fluid is:

(a) Oxygen

(b) Gold

(d) Sulphur

4. A form of matter has no fixed shape but it has a fixed volume. An example of this form of matter is:

(a) Orange juice

(b) Biscuit

(d) Chocolate

5. In which of the following conditions, the distance between the moleculesof carbon dioxide gas would increase?

1. Increasing the size of the container of carbon dioxide

2. Some carbon dioxide leaking out of the container

3. Increasing pressure on the gas in a closed container

4. Adding more carbon dioxide to the container without increasing its size

Select the correct answer using the codes given below:

(a) 2 and 3

(b) 3 and 4

(d) 1 and 2

6. Solutions are of many types. Some types of solutions with an example each

are given below:

(i) Gas in liquid—Vinegar

(ii) Solid in liquid—Brine

(iii) Solid in solid—Brass

(iv) Liquid in liquid—Coca-Cola

Which of the above are matched correctly?

(a) (i) and (iii)

(b) (ii) and (iii)

(d) (ii), (iii) and (iv)

7. Consider the following statements:

(i) Formation of clouds is a chemical change.

(ii) Making a fruit salad from raw fruits is a physical change.

(iii) Growth of a plant is a chemical change.

Which of the statements given above is/are correct?

(a) (i) and (ii)

(b) (ii) only

(d) (i), (ii) and (iii)

8. Liquefaction of gases is favoured by

(a) high temperature, high pressure

(b) low temperature, high pressure

(d) low temperature, low pressure

9. The energy absorbed during the change of state of a substance is called

(a) Specific heat

(b) Heat capacity

(d) Heat of neutralisation

10. An example of a substance which is neither a good conductor of

electricity nor an insulator is

(a) Sodium

(b) Germanium

(d) Magnesium

11. The pair of elements, both of which are liquids, is

(a) Bromine and Mercury

(b) Iodine and Mercury

(d) Chlorine and Iodine

12. Which of the following are mixtures?

(i) Air

(ii) Petrol

(iii) Salt

(iv) Kerosene

Select the correct answer using the codes given below:

(a) (i) and (iii)

(b) (ii) and (iv)

(d) (i), (ii), (iii) and (iv)

13. A non-metal other than carbon which shows allotropy is

(a) Phosphorus

(b) Sulphur

(d) Bromine

14. Which of the following substances is an element?

(a) Brick

(b) Marble

(d) Wood

15. Consider the following elements:

(i) Carbon

(ii) Nitrogen

(iii) Hydrogen

(iv) Oxygen

Which elements does sugar contain?

(a) (i), (iii) and (iv)

(b) (i), (ii) and (iii)

(d) (i) and (iv)

16. An example of a lustrous non-metal is

(a) Carbon

(b) Iodine

(d) Silver

17. A metal which forms amalgams is

(a) Potassium

(b) Calcium

(d) Silicon

18. Which of the following has a fixed melting point?

(a) Butter

(b) Ice cream

(d) Glucose

19. The substance used for making electrodes in a dry cell is

(a) Graphite

(b) Iron

(d) Cobalt

20. A metal which can be easily cut with a knife is

(a) Calcium

(b) Sodium

(d) Aluminium

21. Which of the following is an alloy?

(a) Copper

(b) Zinc

(d) Manganese

22. Which of the following is not an element?

(a) Diamond

(b) Germanium

(d) Gallium

23. There are different types of colloids. Given below are some colloids

paired with an example each:

(i) Aerosol—Hair spray

(ii) Gel—Ruby

(iii) Emulsion—Butter

(iv) Foam—Shaving Cream

Which of the above pairs are not correctly matched?

(a) (iii) only

(b) (ii) only

(d) (iii) and (iv)

24. Consider the following methods of separation of mixtures:

(i) Filtration

(ii) Sublimation

(iii) Magnetic separation

(iv) Distillation

Which of the above is/are used to separate a mixture of chalk powder, iron

fillings, and naphthalene?

(a) (ii) and (iii)

(b) (i) only

(d) (ii), (iii) and (iv)

25. Which of the following is a physical change?

(a) Ripening of grapes

(b) Corrosion of a photo frame

(d) Formation of curd from milk

26. An example of a chemical change is

(a) Wool being knitted into a sweater

(b) Salt being dissolved in water

(d) Water being boiled

27. The one which does not show Tyndall effect is

(a) sugar solution

(b) soap solution

(d) chalk powder and water mixture

28. Which one of the following is a solid foam?

(a) Butter

(b) Hair gel

(d) Soap

29. Smoke, fog, and mist are examples of

(a) Aerosols

(b) Emulsions

(d) Gels

30. Which of the following are physical changes?

(i) Burning of wood

(ii) Sawing of wood

(iii) Decaying of wood

(iv) Making holes in wood

Select the correct answer using the codes given below:

(a) (i) and (iii)

(b) (ii) and (iii)

(d) (ii) and (iv)

31. Which of the following is a chemical change?

(a) Bending of an iron rod

(b) Rusting of an iron rod

(d) Drawing wires of iron metal

32. A mixture of milk and castor oil can be separated by

(a) Evaporation

(b) Filtration

(d) Sublimation

33. The substance added to disinfect water during purification process at the

water works is

(a) Chlorine

(b) Potassium permanganate

(d) Alum

34. Which of the following sublime?

(i) Iodine

(ii) Silica

(iii) Ammonium chloride

(iv) Naphthalene

Select the correct answer using the codes given below:

(a) (ii), (iii) and (iv)

(b) (i), (iii) and (iv)

(d) (iv) only

35. Camphor can be separated from sand by

(a) Crystallisation

(b) Distillation

(d) Centrifugation

36. The process used in dairies to separate cream from milk is

(a) Decantation

(b) Filtration

(d) Centrifugation

37. The process by which tea leaves are separated from prepared tea is called

(a) Filtration

(b) Distillation

(d) Evaporation

38. Pigments obtained from plants can be separated by

(a) Crystallisation

(b) Magnet

(d) Separating funnel

39. The process involved in the separation of petrol, diesel, kerosene, heavy

oil, etc., from crude petroleum and in the separation of gases present in air

(a) Gas-liquid chromatography

(b) Fractional distillation

(d) Fractional crystallisation

40. Teflon, the tough and fire resistant polymer, contains the halogen

(a) Fluorine

(b) Chlorine

(d) Iodine

41. Carborundum, which is used as an abrasive and as a lining in furnaces, is

chemically

(a) Silicon dioxide

(b) Aluminium oxide

(d) Calcium carbide

42. The halogen used in the manufacture of bleaching powder is

(a) Chlorine

(b) Iodine

(d) Bromine

43. Gases used in electrical valves, TV tubes, lighthouses and miner’s lamps

are

(a) Oxygen and Carbon dioxide

(b) Nitrogen and Oxygen

(d) Krypton and Xenon

44. Phosphorus finds important use in

(a) Paper industry

(b) Fertiliser industry

(d) Textile industry

45. Silver bromide and sodium thiosulphate are used in

(a) Fertilisers

(b) Detergents

(d) Cosmetics

46. The gas used in fire extinguishers is

(a) Nitrogen

(b) Carbon dioxide

(d) Helium

47. An example of fruit ripener is

(a) Acetylene

(b) Ammonium nitrate

(d) Urea

48. Which of the following is used as a refrigerant?

(a) Ethane

(b) Hydrogen

(d) Ammonia

49. Rust is chemically

(a) Ferric oxide

(b) Ferric sulphide

(d) Ferric carbonate

50. Caustic soda, washing soda and baking soda are respectively

(a) NaOH, Na2CO3, NaHCO3

(b) NaOH, NaHCO3, Na2CO3

(d) Na2CO3, NaOH, NaHCO3

Answer

1. (c) 2. (b) 3. (a) 4. (a) 5. (d) 6. (b)7. (c) 8. (b) 9. (c) 10. (b) 11. (a) 12. (c) 13. (b) 14. (c) 15. (a) 16. (b) 17. (c) 18. (d)19. (a) 20. (b) 21. (c) 22. (c) 23. (b) 24. (a)25. (c) 26. (c) 27. (a) 28. (c) 29. (a) 30. (d)31. (b) 32. (c) 33. (c) 34. (b) 35. (c) 36. (d)37. (a) 38. (c) 39. (b) 40. (a) 41. (c) 42. (a) 43. (d) 44. (b) 45. (c) 46. (b) 47. (a) 48. (d)49. (a) 50. (a)