Chemical Reactions

1. 1. Aqua regia is being prepared by which of the given acids?

• Nitric acid and Hydrochloric acid

• Citric acid and Nitric acid

• Sulphuric acid and Hydrochloric acid

• Sulphuric acid and Citric acid

2. 2. When a pH value of a solution shows 7, then a solution is?

• Acidic

• Basic

• Neutral

• None of the above

3. 3. When a given solution turns red litmus blue, it indicates -------------nature of the solution.

• Acidic

• Basic

• Neutral

• Maybe acidic or basic

4. 4. Sodium Chloride is a product of? 

• Strong acid, strong base

• strong acid, weak base

• weak acid, strong base

• weak acid, weak base

5. 5. What is the chemical name of baking soda?

6. 6.  What is the chemical name of gypsum?

7. 7. pH of a solution of copper sulphate will be

• less than 7

• more than 7

• equal to 7

• depends on the concentration of solution

8. 8. Sodium carbonate deca hydrate is

• washing soda

• baking soda

• soda ash

• soda water

9. 9. Products of chlor alkali process

• NaOH, H2, O2

• H2, O2, NaCl

• NaOH, H2, Cl2

• NaCl, H2O

10. 10. Gas liberated when copper is heated with conc sulphuric acid