Q.

Assertion (A): Benzene diazonium salts are stable 

Reason (R): Benzene diazonium ion is stabilised by resonance

Moderate

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a

(A) Both (A) and (R) are true and (R) is the correct explanation of (A)

b

Both (A) and (R) are true and (R) is not the correct explanation of (A)

c

(A) is true but (R) is false

d

Both (A) and (R) are false

answer is A.

(Detailed Solution Below)

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Detailed Solution

 RNH2NaNO2+HClC6H5N2+Cl-

The above reaction is known as the diazotization reaction which gives benzene diazonium salts as the final product.

Resonance in benzene diazonium salt,

                          

So, benzene diazonium salt is stabilised by resonance.

Hence, option (A) is correct.    

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