The chemical formula of Sodium Sulphite is:

N a_{2} S O_{3}

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N a_{2} S O_{4}

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N a S O 3

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N a_{3} S O_{4}

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Solution

The correct option is A $N a_{2} S O_{3}$
The valency of sodium is one and that of sulphite ion is 2. Cross multiplying the valencies, we get $N a_{2} S O_{3}$ .

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(N a_{2} S O_{3})

(N a_{2} S O_{3})

(N a_{2} S O_{3})

Sodium sulphite $N a_{2} S O_{3}$ ,reacts with nitric acid $H N O_{3}$ .

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