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NEET Sample Paper NEET Sample Test Paper-65

  • question_answer
    The metal which displaces hydrogen from a boiling caustic soda solution is

    A) As                                

    B) Zn

    C) Mg                               

    D) Fe

    Correct Answer: B

    Solution :

    Zn displaces hydrogen from the boiling solution of NaOH. \[Zn+2NaOH+2{{H}_{2}}O\,\,\to \,\,N{{a}_{2}}\left[ Zn{{(OH)}_{4}} \right]\,\,+{{H}_{2}}\,\uparrow \]


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