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Which one of the alkali metals forms onl...

Which one of the alkali metals forms only the normal oxide, `M_(2)O`, on heating in air ?

A

Rb

B

K

C

Li

D

Na

Text Solution

Verified by Experts

The correct Answer is:
D
Li is the alkali metal which forms only normal oxide, i.e.,`Li_(2)O` when heated in air.
`2Li+(1)/(2)O_(2)toLi_(2)O`
Sodium when heated in air, forms peroxide while heavier alkali metal forms superxoide as the major products.
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