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Question

Assertion :Aniline on reaction with NaNO2/HCl at 0oC followed by coupling with βnaphthol gives a dark blue coloured precipitate. Reason: The colour of the compound formed in the reaction of aniline with NaNO2/HCl 0oC followed by coupling with βnaphthol is due to extended conjugation.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Assertion is incorrect and Reason are correct
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Solution

The correct option is D Assertion is incorrect and Reason are correct
Gives orange-red coloured precipitate.
Assertion is incorrect.
Colour of a compound is due to (besides other factor)extended conjugation. Hence, Reason is correct.
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