RAJASTHAN PMT Rajasthan - PMT Solved Paper-2005

  • question_answer
    The high boiling point of water is due to which reason:

    A)  co-ordinate bonding

    B)  covalent bond

    C)  electrostatic force of attraction

    D)  hydrogen bonding

    Correct Answer: C

    Solution :

    The higher boiling point of water is due to hydrogen bonding. Each \[O-\]atom of each \[{{H}_{2}}O-\]atoms of the adjacent \[{{H}_{2}}O\] molecule by \[H-\]bonding. \[H-\underset{\begin{smallmatrix}  | \\  O \end{smallmatrix}}{\mathop{O}}\,---H-\underset{\begin{smallmatrix}  | \\  H \end{smallmatrix}}{\mathop{O}}\,---H-\underset{\begin{smallmatrix}  | \\  H \end{smallmatrix}}{\mathop{O}}\,---H-\underset{\begin{smallmatrix}  | \\  H \end{smallmatrix}}{\mathop{O}}\,--\]                 H-bonding in water molecules


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