Sodium carbonate or washing soda or soda ash is the :

sodium salt of sulphuric acid acid

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sodium salt of carbonic acid

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ammonium salt of carbonic acid

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potassium salt of carbonic acid

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Solution

The correct option is A sodium salt of carbonic acid
Sodium carbonate is manufactured by the thermal decomposition of sodium hydrogen carbonate obtained by Solvay process. It is the sodium salt of carbonic acid.

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Similar questions

(a) Describe how washing soda is produced starting from sodium chloride (common salt). Write equations of all the reactions involved.

(b) State whether an aqueous solution of washing soda is acidic or alkaline ? Give reason for your answer.

(d) Give two important uses of washing soda (or sodium carbonate).

Write balanced equations to satisfy each statement.

(a) Acid + Active metal $\to$ Salt + Hydrogen

(b) Acid + Base $\to$ Salt + Water

or bicarbonate

(d) Acid + Sulphite or bisulphite $\to$ Salt + Water + Sulphur dioxide

(e) Acid + Sulphide $\to$ Salt + Hydrogen Sulphide

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