JEE Main & Advanced Chemistry Hydrogen & Its Compounds Question Bank Water or hydride of oxygen

  • question_answer Which of the following is not true

    A) Ordinary water is electrolysed more rapidly than \[{{D}_{2}}O\]

    B) Reaction between \[{{H}_{2}}\] and \[C{{l}_{2}}\] is much faster than \[{{D}_{2}}\] and \[C{{l}_{2}}\]

    C) \[{{D}_{2}}O\] freezes at lower temperature than \[{{H}_{2}}O\]

    D) Bond dissociation energy for \[{{D}_{2}}\] is greater than \[{{H}_{2}}\]

    Correct Answer: C

    Solution :

    \[{{D}_{2}}O\] actually has higher freezing point (3.8°C) than water \[{{H}_{2}}O\] (0°C).

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