Question

write two uses of sodium hydroxide,chlorine and hydrogen




class 10
chemistry



@seasonind

Answer 1

Answer:

sodium hydroxide:

(a)for prepare common salt

(b)making soaps

(c)used in paper and glass industry

chlorine:

(a)for chlorination of water

(b)for making bleaching powder

(c) antiseptic

hydrogen:

(a)hydrogenation of fats and oils

(b)welding

(c) as rocket fuel

Explanation:

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Answer 2

Answer:-

Sodium hydroxide:-

1. It is used in chemical manufacturing, oil refining, hydraulic fracturing, water treatment and metal processing.

2. It is used in the manufacture of fabric, plastic wrap, paper and soap.

Chlorine:-

1. Chlorine kills bacteria – it is a disinfectant. It is used to treat drinking water and swimming pool water.

2. It is also used to make hundreds of consumer products from paper to paints, and from textiles to insecticides.

Hydrogen:-

1. Commercial fixation of nitrogen from the air in the Haber ammonia process.

2. Hydrogenation of fats and oils.

3. Methanol production, in hydrodealkylation, hydrocracking, and hydrodesulphurization.

4. Rocket fuel.