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NEET Chemistry Alcohols, Phenols and Ethers / एल्कोहॉल, फीनॉल तथा ईथर Question Bank Self Evaluation Test - Alcohols, Phenols and Ethers

  • question_answer
    Identify X in the following sequence: \[\underset{(X)}{\mathop{{{C}_{3}}{{H}_{8}}O}}\,\xrightarrow[{{H}_{2}}S{{O}_{4}}]{{{K}_{2}}C{{r}_{2}}{{O}_{7}}}{{C}_{3}}{{H}_{6}}O\xrightarrow[{{I}_{2}}+NaOH]{warn}CH{{I}_{3}}\]

    A) \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}OH\]

    B) \[C{{H}_{3}}CH(OH)C{{H}_{3}}\]

    C) \[C{{H}_{3}}OC{{H}_{2}}C{{H}_{3}}\]        

    D) \[C{{H}_{3}}C{{H}_{2}}CHO\]

    Correct Answer: B

    Solution :

    [b] Since the compound \[X({{C}_{3}}{{H}_{6}}O)\] gives iodoform test, it must have \[-COC{{H}_{3}}\] groups hence it should be \[C{{H}_{3}}COC{{H}_{3}}\]. Therefore X should be \[C{{H}_{3}}CH(OH)C{{H}_{3}}\].


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