Question

Write two uses of caustic soda.

Answer 1

It is used in the purification of petroleum.
It is used in the manufacturing of soap, paper, silk industry and other chemicals.

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Answer 2

Dear Student,

◆ Caustic soda -

• Caustic soda is nothing but sodium hydroxide.
• Its molecular formula is NaOH and it exists as white powder.

# Uses of caustic soda -

1. Sodium hydroxide is used in preparation of detergents, soaps.
2. It can be used to extract alumina from Bauxite.
3. It is also used in manufacturing of pulp and paper.
4. Caustic soda can be used for purification of water.
5. It can be to clean drains of sink.
6. It can be used for food processing like softening olives.

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