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Reaction of Acids and Bases with Metals

A metal sulph...

Question

A metal sulphide X reacts with acid Y to form sodium sulphate and hydrogen sulphide. So, Y is __.

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Solution

Sodium sulphide reacts with sulphuric acid to form sodium sulphate and hydrogen sulphide.

So, X is sodium sulphide and Y is sulphuric acid.

$N a_{2} S + H_{2} S O_{4} \to N a_{2} S O_{4} + H_{2} S ↑$

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