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Binary Compounds - Hydrides

Alkali metal ...

Question

Alkali metal hydrides react with water to give

A

Acidic solution

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B

Basic solution

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C

Neutral solution

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D

Hydride ion

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Solution

The correct option is B Basic solution
Alkali metals are more electropositive, when they react with water they give metal hydroxide and hydrogen gas is evolved.
Alkali hydroxides are more basic in nature and they dissociate as $O H^{-}$ ions, hence the resultant solution will be basic.

$N a H + H_{2} O \to N a O H + H_{2} ↑$

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Binary Compounds - Hydrides

Standard XII Chemistry

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