Q.

In Solvay's process, choose the correct starting material(s).

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a

Sodium sulphate

b

All of these

c

Brine solution

d

Carnallite

answer is B.

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Detailed Solution

When CO2 gas is passed through a brine solution (28% NaCl) saturated with ammonia, it gives sodium bicarbonate which upon drying and heating gives sodium carbonate. 

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