JEE Main & Advanced Chemistry Hydrogen & Its Compounds Question Bank Hydrogen

  • question_answer In which of the compounds does hydrogen have an oxidation state of -1

    A) \[C{{H}_{4}}\]

    B) \[N{{H}_{3}}\]

    C) HCl

    D) \[Ca{{H}_{2}}\]

    Correct Answer: D

    Solution :

    \[\overset{+2}{\mathop{Ca}}\,\overset{x}{\mathop{{{H}_{2}}}}\,\] i.e., \[2+2x=0\], \[x=-1\] \[2x=-2\] or \[x=\frac{-2}{2}=-1\]


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