Question

$NaH$ is an example of:

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• A. Molecular hydride
• B. Metallic hydride
• C. Saline hydride
• D. Electron-rich hydride

Answer 1

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.
$2Na+H_2\to 2NaH$