Question

Fill in the blanks
1. Acids turn …………. litmus solution…………. .
2. pH of basic solution is always …………. than 7.
3. …………. are the products obtained when bleaching powder reacts with dilute sulphuric acid.
4. Potassium nitrate has pH value equal to …………. .
5. …………. is the fixed number of water molecules chemically attached to each formula unit of a salt in its crystalline form.
6. …………. is one of the raw materials for the production of baking soda.
7. The salts of a strong acid and weak base are …………. with pH value …………. than 7.
8. Use of mild base like …………. on the bee-stung area gives relief.
9. During indigestion the stomach produces too much …………. and this causes pain and irritation.
10. The presence of …………. Ca in acids is responsible for their acidic properties.
11. Mixing an acid or base with water results in decrease in the concentration of per unit volume.
This process is called
12. Among HCl, H2SO4 and CH3COOH, …………. is a weak acid.​

Answer 1

Answer:

1. blue litmus to red

2. more than

3. calcium sulphate and chlorine gas

4. 7 pH

5. water of crystallization

6.sodium chloride , water , carbon di-oxide and ammonia

7.acidic and less

8. baking soda

9.acid

10. H+

11.dillution

12.CH3COOH

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