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NEET Sample Paper NEET Sample Test Paper-72

  • question_answer
    The more the -I effect, the more reactive is the aldehyde towards NA reaction\[[(II)>(III)>(IV)>(I)]\]. In order to distinguish between \[{{C}_{2}}{{H}_{5}}N{{H}_{2}}\] and, which of the following reagents is useful?                                  

    A) Hinsberg reagent

    B) \[p-Naphthol\]

    C) Benzene diazonium chloride

    D) None of the above  

    Correct Answer: B

    Solution :

    \[1{}^\circ \] aromatic amine on diazotisation followed by coupling with \[\beta -naphthol\] gives azo dye test.


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