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  4. Hydride of certain non-metallic element X is amphoteric in nature. It also reacts with sodium hydride as well with metallic sodium to liberate dihydrogen gas. The element X can be

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Q. Hydride of certain non-metallic element X is amphoteric in nature. It also reacts with sodium hydride as well with metallic sodium to liberate dihydrogen gas. The element X can be

NTA AbhyasNTA Abhyas 2020The s-Block Elements

Solution:

Here X is oxygen and Hydride of 'O' is $H_{2}O$ which is amphoteric in nature.

$2H_{2}O+2NaH \rightarrow 2NaOH+2H_{2}$

$2H_{2}O+2Na \rightarrow 2NaOH+H_{2}$