A) small size of N, O and F
B) the ability to form extensive intermolecular H-bonding
C) the ability to form extensive intramolecular H-bonding
D) effective van der Waals interaction
Correct Answer: B
Solution :
Hydrides of N, 0 and F because of the small size and high electronegativity of elements, have ability to form extensive intermolecular (i.e., between two molecules) hydrogen bonding. Thus, a large amount of energy is required to break these bonds, i.e., the melting and boiling points of hydrides of these elements are abnormally high.You need to login to perform this action.
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