JEE Main & Advanced Sample Paper JEE Main Sample Paper-37

  • question_answer
    Which of the following carbide does not release any hydrocarbon on reaction with water.

    A)  \[SiC\]                         

    B)  \[B{{e}_{2}}C\]

    C)  \[Ca{{C}_{2}}\]                      

    D)  \[M{{g}_{2}}{{C}_{3}}\]

    Correct Answer: A

    Solution :

     [a] \[SiC\Rightarrow \] Covalent carbide [b] \[B{{e}_{2}}C+4{{H}_{2}}O\xrightarrow{{}}2Be(OH){{}_{2}}+C{{H}_{4}}\uparrow \] [c] \[Ca{{C}_{2}}+2{{H}_{2}}O\xrightarrow{{}}HC\equiv CH\uparrow +Ca{{(OH)}_{2}}\] [d] \[M{{g}_{2}}{{C}_{3}}+2{{H}_{2}}O\xrightarrow{{}}2Mg{{(OH)}_{2}}+{{H}_{3}}C-C=CH\uparrow \]


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