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Preparations and Uses of Sodium Carbonate

Sodium carbon...

Question

Sodium carbonate or washing soda or soda ash is the

A

sodium salt of sulphate acid acid

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B

sodium salt of carbonic acid

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C

ammonium salt of carbonic

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D

potassium salt of carbonic acid.

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Solution

The correct option is B 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. Sodium carbonate is also known as washing soda or soda ash. The formula of sodium carbonate is $N a_{2} C O_{3}$

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Similar questions

Q. Sodium carbonate or washing soda or soda ash is the :

(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.

(c) What is meant by saying that washing soda has detergent properties ?

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

Q. Washing soda is a basic salt while baking soda is an acidic salt.

Q. Fill in the following blanks:
(a) Common salt is obtained from sea-water by the process of.............
(b) Rock salt is mined just like ......................
(c) Chemical formula of washing soda is ..................
(d) Sodium hydrogen carbonate is .................. soda whereas sodium carbonate is ................. soda.
(e) The chemical formula of plaster of Paris is ............

Write balanced equations to satisfy each statement.

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

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

(c) Acid + Carbonate $\to$ Salt + Water + Carbon dioxide

or bicarbonate

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

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

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Preparations and Uses of Sodium Carbonate

Standard XII Chemistry

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