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BCECE Engineering BCECE Engineering Solved Paper-2007

  • question_answer
    Which metal gives hydrogen gas on heating with hot concentrated alkali?

    A)  Ag                                         

    B)  Ni                          

    C)  Zn                         

    D)         Cu

    Correct Answer: C

    Solution :

    \[Zn+2NaOH\xrightarrow{{}}N{{a}_{2}}Zn{{O}_{2}}+{{H}_{2}}\] \[\therefore \] \[Zn\]liberates hydrogen with hot conc. alkali.


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