Amongst H2O,H2S,H2Se and H2Te, the one with the highest boiling point is :
A
H2O because of hydrogen bonding
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B
H2Te because of highest molecular weight
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C
H2S because of hydrogen bonding
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D
H2Se because of lower molecular weight
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Solution
The correct option is AH2O because of hydrogen bonding Among H2O,H2S,H2Se and H2Te, the one with the highest boiling point is H2O because of intermolecular hydrogen bonding which leads to molecular association and leads to higher energy for boiling.