Question
Assertion

The order of densities of the various allotropes of phosphorus is as follows:
black phosphorus, red phosphorus, white phosphorus.

Reason

As tendency of polymerisation increases, the compactness of substance also increases.

A

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

B

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

C

Assertion is correct but Reason is incorrect

D

Assertion is incorrect but Reason is correct

Medium
Updated on : 2022-09-05
Solution
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Correct option is A)

order of densities of the various allotropes of phosphorus is
               Black > Red > White.
because as the 
tendency of polymerisation increases, the compactness of substance also increases as shown in the above diagram.

Option A is correct

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