Washing soda is used in the manufacture of which of the following compounds?

Question

Question

This question was previously asked in

RRB Group D 8 Sept 2022 Shift 2 Official Paper

Answer 1

The correct answer is 'Borax'.

Key Points

Uses of washing soda:
- Sodium carbonate (washing soda) is used in the glass, soap, and paper industries.
- It is used in the manufacture of sodium compounds such as borax.
- Sodium carbonate can be used as a cleaning agent for domestic purposes.
- It is used for removing the permanent hardness of the water.
The Washing Soda's chemical name is sodium carbonate (Na CO ).

Additional Information

Borax is a white crystalline solid of the chemical formula Na₂B₄O₇.10H₂O.
On heating, it loses water of crystallization.
- The molecular formula for Borax is- H₂₀B₄Na₂O_17'
It is used:
- as an alkaline buffer in dyeing and bleaching processes
- as a preservative in the manufacture of optical and borosilicate glasses
- as a flux, and in making glazes for pottery and tiles