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

  • question_answer
    Identify the correct order of boiling points of the following compounds:
    \[\underset{1}{\mathop{C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH}}\,\]   
    \[\underset{2}{\mathop{C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}CHO}}\,\]
    \[\underset{3}{\mathop{C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}COOH}}\,\]

    A) 1>2>3     

    B) 3>1>2

    C) 1>3>2                        

    D) 3>2>1

    Correct Answer: B

    Solution :

    [b] Due to -I effect of the -COOH group, H-bonds in acids are much stronger than in alcohols; while aldehydes do not exhibit H-bonding.


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