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Preparations and Reactions of Sodium Oxide

The compound ...

Question

The compound formed upon combustion of Na in excess air is

Na₂O₂

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Na₂O

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NaO₂

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NaOH

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Solution

The correct options are
A
Na₂O₂

B
Na₂O

$4 N a + 2 O_{2} \to 2 N a_{2} O_{2}$

In excess air it forms a peroxide.

$4 N a + O_{2} \to 2 N a_{2} O$

In limited supply of air it forms sodium oxide.

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The compound(s) formed upon combustion of sodium metal in excess air is(are)

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