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JEE Main & Advanced Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank Oxygen Family

  • question_answer
    At room temperature \[{{H}_{2}}O\] is a liquid while \[{{H}_{2}}S\] is a gas. The reason is [RPET 1999]

    A) Electronegativity of O is greater than S

    B) Difference in the bond angles of both the molecules

    C) Association takes place in \[{{H}_{2}}O\] due to H-bonding while no H- bonding in \[{{H}_{2}}S\]

    D) O and S belong to different periods

    Correct Answer: C

    Solution :

    \[{{H}_{2}}O\]contain hydrogen bond while no hydrogen bonding is present in \[{{H}_{2}}S\].


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