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Chemical Properties of Boron Family

Which one of ...

Question

Which one of the following elements of group 13 can react with an alkali to give $H_{2}$ gas?

A

Boron

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B

Aluminium

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C

Gallium

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D

All of these

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Solution

The correct option is D All of these
$2 B + 6 N a O H \to 2 N a_{3} B O_{3} + 3 H_{2}$

$2 A l + 2 N a O H + 6 H_{2} O \to 2 N a A l (O H)_{4} + 3 H_{2}$

$2 G a + 2 N a O H + 6 H_{2} O \to 2 N a [G a (O H)_{4}] + 3 H_{2}$

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