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  3. JEE Main & Advanced

JEE Main & Advanced JEE Main Paper Phase-I (Held on 09-1-2020 Evening)

  • question_answer
    Consider the following reactions \[A\xrightarrow[(ii)\,\,{{H}_{3}}{{O}^{+}}]{(i)\,C{{H}_{3}}MgBr}B\xrightarrow[573K]{Cu}2-methyl-2-butene\] The mass percentage of carbon in A is ______. [JEE MAIN Held on 09-01-2020 Evening]

    Answer:

    66.67


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