JEE Main Chemistry question

[AIEEE 2010] In the sequence C₆H₅NH₂ —NaNO₂/HCl, 278 K→ A —HBF₄→ B, the compounds A and B respectively are

Answer: (D)

Solution

Cold diazotisation of aniline gives benzenediazonium chloride (A). Treating this with HBF₄ gives benzenediazonium

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Question ID VK-140113