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NEET Chemistry Aldehydes, Ketones Question Bank Self Evaluation Test - Aldehydes, Ketons and Carboxylic Acids

  • question_answer
    Among the following the order of reactivity towards nucleophilic addition is

    A) \[C{{H}_{3}}CHO>C{{H}_{3}}COC{{H}_{3}}>HCHO\]

    B) \[HCHO>C{{H}_{3}}CHO>C{{H}_{3}}COC{{H}_{3}}\]

    C) \[C{{H}_{3}}CHO>HCHO>C{{H}_{3}}COC{{H}_{3}}\]

    D) \[C{{H}_{3}}COC{{H}_{3}}>C{{H}_{3}}CHO>HCHO\]

    Correct Answer: B

    Solution :

    [b] Presence of alkyl group in carbonyl compounds decreases their reactivity towards nucleophilic addition. Further greater the number of such groups lesser will be the reactivity towards nucleophilic addition \[\therefore \] correct order is \[HCHO>C{{H}_{3}}CHO>C{{H}_{3}}COC{{H}_{3}}\]


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