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Question
Assertion

Red phosphorous on heating changes its colour to black.

Reason

Black phosphorus contain $$P_4$$ units.

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

Both Assertion and Reason are incorrect

Medium

Solution

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Correct option is
C

Assertion is correct but Reason is incorrect

Black P has graphite like network structure.
Red phosphorus on heating changes its colour to black
Also, black phosphate does not contain P4 units
C is right

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