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Allotropes of Phosphorus

Question

Which of the following properties of white phosphorus are shared by red phosphorus?
It burns when heated in air
It reacts with hot aqueous $N a O H$ to give phosphine
It exhibits phosphorescence in air
It dissolves in carbon disulphide

A

It dissolves in carbon disulphide

B

It exhibits phosphorescence in air

C

It reacts with hot aqueous

N a O H

to give phosphine

D

It burns when heated in air

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Solution

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White phosphorus exhibits phosphorescence in air while red phosphorus does not.
White phosphorus reacts with hot aqueous $N a O H$ to give phosphine while red phosphorus does not.
White phosphorus dissolves in carbon disulphide while red phosphorus does not.
Both red phosphorus and white phosphorus burns when heated in air.

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