Haryana PMT Haryana PMT Solved Paper-2010

  • question_answer
    Which of the following is least volatile?

    A)  \[{{H}_{2}}O\]                 

    B)  \[{{H}_{2}}S\]

    C)  \[{{H}_{2}}Se\]                

    D)  \[{{H}_{2}}Te\]

    Correct Answer: A

    Solution :

                    Water \[({{H}_{2}}O)\] is least volatile due to the association  of \[{{H}_{2}}O\]  molecules  through hydrogen bonding. However hydrogen bonding is not present in other hydrides.


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