Which of the following compounds disproportionates into $M_{2} O_{2}$ (peroxide) and M (metal) on heating?

L i_{2} O

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N a_{2} O

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Both (a) and (b)

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None of these

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Solution

The correct option is D $N a_{2} O$
$N a_{2} O$ disproportionates into $M_{2} O_{2}$ and $M$ is given by,

Reaction:
$2 N a_{2} O \to N a_{2} O_{2} + 2 N a$

Hence,option B is cotrrect.

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Similar questions

Which disproportionate into $M_{2} O_{2}$ (peroxide) and M (metal) on heating?

N a

L i

L i_{2} O

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