Chemistry One Liners | One Liners Chemistry Questions | Chemistry Questions for all Exams | Part - 1.

Latest Chemistry Questions | Chemistry Questions and Answers for SSC CGL 2024 & other Competitive Exams.

Hello Friends, We are sharing with you One Liners Chemistry Questions and Answers. This is very helpful for various competitive exams like SSC CGL, CHSL, MTS, RRB, DMRC, UPSC & other competitive exams. 

 

Chemistry Questions for SSC CGL 2023/24:

1. Steel contains-

    0.1 to 2 percent carbon

 

2. The component of air used in the respiratory process is-

     oxygen.

 

3. The main role of salts in food is-

     to make a small amount of hydrochloric acid which helps in digestion of food.

 

4. The most commonly used metal by humans is –

     iron.

 

5. The main component of cow dung gas is-

     Methane

 

Physics One Liners.

 

6. The best fertilizer for plants is-

     compost

 

7. The pH of aqueous solution of hydrochloric acid can be approximately-

     2

 

8. The highest element found in rocks and minerals is-

    silicon.

 

9. The gas used to extinguish the fire is

     Carbon dioxide.

 

10. The aqueous solution of which gas has a strong acidic property –

       sulfur dioxide

 

11. The industrial production of aluminum from bauxite is by industrial process –

       Electrical decomposition

 

12. Hydrogen is made up of acids, hydrogen and elements –

       chlorine.

 

13. The commercial utility of ethylene and styrene is due to their potential –

       polymerization

 

14. The compound that does not form a clean solution with water is –

       benzoic acid.

 

15. Pure alcohol from Sura can be obtained from this process-

       Distillation

 

Polity One Liners.

 

 

16. The highest amount of substance found in ocean water is-

       ordinary salt

 

17. The gas produced by the fermentation of a sugar solution is-

      carbon dioxide.

 

18. The pH of an aqueous solution of acetic acid is 2 What will be added to it will increase its pH value-

      Aqueous ammonia

 

19. Natural substance, which is made up of only one element and from which energy can be obtained-

      coal

 

20. Water is often not used to extinguish petrol fires because-

       water and petrol are inseparable.Petrol forms a layer on the surface of water

 

21. Industrial is a group of substances made by electrical decomposition –

       caustic soda,chlorine, aluminum

 

22. The gas that pollutes the environment is-

       Sulfur dioxide.

 

23. The most important compounds for plant growth are made of-

      Nitrogen

 

24. How the compound made by heating caustic soda solution with flaxseed oil is used-

      Soap

 

25. Sulfur dioxide and oxygen are two gases used in the industrial production of –

      sulfuric acid.

  

History One Liners.

 

 26. By what method can pure water be obtained from the oceans-

      distillation

 

27. In which process normal salts are obtained from sea water-

       evaporation

 

28. What happens in the white layer that accumulates on the heating element of the electrical      equipment used to boil  hard water -

       calcium and magnesium salts

 

29. Which is the common salt –

       sodium chloride

 

30. After passing through the rocks, what becomes hard by dissolving in water –

       calcium carbonate

 

31. What is the chemical name of baking soda –

       sodium bicarbonate

 

32. Phenomenon used in the process of dialysis given to patients of –

       diseased kidneys

 

33. There is a mixture of gunpowder-

       nitrate, sulfur and charcoal.

 

34. Reagent is the color-bleaching reagent –

       Sulfur dioxide.

 

35. The process of heating a solid object directly into gaseous form is called –

       Sublimation.

 

Biology One Liners.

 

 36. Silver helides are used in photography plates because-

       they are colorless.

 

37. Do not sleep near or under trees at night because trees leave at night........ –

      Carbon dioxide

 

38. _______ is a pure crystalline form of silica for passing ultraviolet rays in scientific instruments.

      Quartz glass

 

39. The gas used to cook green fruits is-

       ethylene.

 

40. The primary gold purity is –

      24 carat

 

41. Serpasil-

       is a tranquilizer

 

42. Chloroquine is a compound that acts as an-

       Antimalarial drug.

 

43. The first metal used by humans was-

       copper

 

44. The most malleable metal is-

      gold

 

45. The industrial process of artificially producing gasoline is called Fisher –

       Tropsch process.

 

 Economics One Liners.

  

46. The water of the rivers is hardened by rain water because –

       they contain calcium and magnesium salts.

 

47. The pH of human blood is approximately-

       7.5.

 

48. Human beings working in asbestos factories become victims of air pollution. The most affected part of their body is-

       the lungs.

 

49. Dialysis is done on patients who have renal-

       disorders.

 

50. Indian Central Drug Research Institute is located in-

       Lucknow.

 

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