GOV EXAM ADDA

1. Which of the following modes of expressing concentrations is independent of temperature?

Answer & Solution

2. The most abundant ions in the Bay if Bengal water are

Answer & Solution

3. Milk is an example of

Answer & Solution

4. Colloidal particles do not settle down because

A. They carry electrical charges

B. They become solvated

C. Their specific gravity is very low

D. They are present in far smaller quantity that of the dispersion medium

Answer & Solution

5. A pair of compound which cannot exist together in solution is

A. Sodium bicarbonate and sodium chloride

B. Sodium carbonate and sodium soda

C. Sodium bicarbonate and caustic soda

D. Sodium bicarbonate and water

Answer & Solution

6. Which one of the following is the mixture of sympathetic link?

A. Zinc chloride and water

B. Magnesium chloride and water

C. Cobalt chloride and water

D. None of the above

Answer & Solution

7. Phosgene is a common name of

A. Phosphorus oxychloride

B. Carbonyl Chloride

C. Phosphorus trichloride

D. Phosphine

Answer & Solution

8. Ethyl alcohol is completely mixed with water. It can be separated from that mixture by

A. Evaporation

B. Allowing the water to evaporate

C. Using a separating funnel

D. Fractional distillation

Answer & Solution

9. Organic acid containing Hydroxyl group is

Answer & Solution

10. Which of the following does not contain a carboxylic group?

Answer & Solution

11. Skin becomes yellow in concentrated HNO3 because

A. Nitrocellulose is formed

B. HNO3 acts as an oxidizing agent

C. The proteins are converted into Xantho proteins

D. HNO3 acts as a dehydrating agent

Answer & Solution

12. The acid used in the Lead storage cell is

A. hydrochloric acid

B. Phosphoric acid

C. Nitric acid

D. Sulphuric acid

Answer & Solution

13. Which one of the following is strongest acid?

A. Dichloro ascetic acid

B. Trichoro acetic acid

C. Acetic acid

D. Monocholoro acetic acid

Answer & Solution

17. Which of the following metals behaves as a non metal towards concentrated HNO3?

Answer & Solution

18. Sulpuric acid is

Answer & Solution

19. Chemical name of ‘Oil of Vitriol’ is

A. Phosphoric acid

B. Nitric acid

C. Sulphuric acid

D. Hydrochloric acid

Answer & Solution

20. A fruit smell is produced by the reaction of C2H5OH with

Answer & Solution

1. Which of the following modes of expressing concentrations is independent of temperature?

2. The most abundant ions in the Bay if Bengal water are

3. Milk is an example of

4. Colloidal particles do not settle down because

5. A pair of compound which cannot exist together in solution is

6. Which one of the following is the mixture of sympathetic link?

7. Phosgene is a common name of

8. Ethyl alcohol is completely mixed with water. It can be separated from that mixture by

9. Organic acid containing Hydroxyl group is

10. Which of the following does not contain a carboxylic group?

11. Skin becomes yellow in concentrated HNO3 because

12. The acid used in the Lead storage cell is

13. Which one of the following is strongest acid?

14. Chemical name of vinegar is

15. Concentrated HNO3 is stored in containers made of

16. The Chemical formula of Acetic acid is _____

17. Which of the following metals behaves as a non metal towards concentrated HNO3?

18. Sulpuric acid is

19. Chemical name of ‘Oil of Vitriol’ is

20. A fruit smell is produced by the reaction of C2H5OH with