GK Questions and answers for all Competitive Examinations

1. The compounds containing COOH group are called?

Answer: Organic Acid

2. Mixture of concentrated Nitric Acid and concentrated Hydrochloric Acid?

Answer: Aquaregia

3. The major acid present in Grapes?

Answer: Tartaric Acid

4. The Acid present in Palm Oil?

Answer: Palmitate Acid

5. Earliest known Acid?

Answer: Acetic Acid

6. The acid present in Vinegar?

Answer: Acetic acid

7. The first acid used by man?

Answer: Acetic acid

8. Acid also known as ‘Muriatic Acid’?

Answer: Hydrochloric Acid

9. Spirits of Salt?

Answer: Hydrochloric Acid

10. Acid which is known as ‘King of Chemicals’?

Answer: Sulphuric Acid

11. Sulphuric Acid is mainly manufactured by?

Answer: Contact Process

12. The acid used in Lead storage batteries?

Answer: Sulphuric acid

13. The acid present in Lemons?

Answer: Citric acid

14. Fuming Sulphuric acid is called?

Answer: Oleum

15. Acid present in Milk and Curd?

Answer: Lactic Acid

16. Which gas is used to produce soda water?

Answer: Carbon dioxide

17. Which chemical is known as Hypo?

Answer: Sodium Thiosulphate

18. Which chemical is the most common photographic fixer?

Answer: Hypo

19. What is added to reduce the acidity of the soil?

Answer: Lime

20. The chemical used to reduce the alkaline nature of the soil is:

Answer: Aluminium Sulphate

21. What is the optimum soil PH range for the most plants?

Answer: 6 to 7.5

22. What turns blue litmus paper into red?

Answer: Acids

23. Red litmus paper turns blue under ………….. conditions?

Answer: Basic (Alkaline)

24. Which chemical is used for the preservation of biological specimen?

Answer: Formalin

25. The alcohol which is present in the alcoholic beverages is ………….?

Answer: Ethanol (Ethyl Alcohol)

26. What is ‘Laughing gas’?

Answer: Nitrous oxide

27. What is used as eyewash?

Answer: Boric Acid

28. Which element is used for manufacturing computer chips, solar cells and trancistors?

Answer: Silicon

29. Benzodiazepine is the most commonly used ………..?

Answer: Psychoactive drug (Sleeping pill)

30. Which chemical is used for the artificial ripening of fruits?

Answer: Calcium carbide