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Reactivity with Halogens and Hydrogen (Group 2)

NaH is an exa...

Question

$N a H$ is an example of:

 JEE MAIN 2019

A

Metallic hydride

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B

Electron-rich hydride

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C

Saline hydride

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D

Molecular hydride

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Solution

The correct option is C Saline hydride
Saline hydrides are also called ionic hydride. Metals having electronegativity lower than hydrogen form such hydride. All elements of group 1 and group 2 when heated form ionic hydride. Metallic hydrides are also called interstitial hydride.
sodium being group 1 element forms a saline hydride.
$2 N a + H_{2} \to 2 N a H$

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