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JEE Advanced 2009Paper 1

Exam: JEE Advanced
Year: 2009
Paper: Paper 1
Subject: Chemistry
Chapter: s Block Elements

JEE Advanced 2009 · Paper 1 · Chemistry · s Block Elements

The compound(s) formed upon combustion of sodium metal in excess...

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

Options

A $\mathrm{Na}_2 \mathrm{O}_2$
B $\mathrm{Na}_2 \mathrm{O}$
C $\mathrm{NaO}_2$
D $\mathrm{NaOH}$

Correct answer

A. $\mathrm{Na}_2 \mathrm{O}_2$

Step-by-step solution

Sodium on heating in air forms both normal oxide and peroxides.

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