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12th Class Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank MCQs - The p-Block Elements

  • question_answer
    Which among the following metals when treated with dil. \[HN{{O}_{3}}\], will produce nitrous oxide?

    A) Fe

    B) Zn

    C) Cu

    D) Ag

    Correct Answer: B

    Solution :

    [b]
    When zinc is treated with dil. \[HN{{O}_{3}},\] then zinc nitrate and water are formed along with nitrous oxide.
    \[4Zn+\underset{\begin{smallmatrix}  (Hot\,\,and\,\, \\  diluted) \end{smallmatrix}}{\mathop{10HN{{O}_{3}}}}\,\to 4Zn(N{{O}_{3}})+5{{H}_{2}}O+\underset{\begin{smallmatrix}  Nitrous \\  Oxide \end{smallmatrix}}{\mathop{{{N}_{2}}O}}\,\]


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