Which of the following fact is directly explained by the statement 'oxygen is a smaller atom tha...

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Which of the following fact is directly explained by the statement 'oxygen is a smaller atom than sulphur' ?
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(a) \( \mathrm{H}_{2} \mathrm{O} \) boils at a much higher temperature than \( \mathrm{H}_{2} \mathrm{~S} \)
(b) \( \mathrm{H}_{2} \mathrm{O} \) undergoes intermolecular hydrogen bonding
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(c) \( \mathrm{H}_{2} \mathrm{O} \) is liquid and \( \mathrm{H}_{2} \mathrm{~S} \) is gas at room temperature
(d) \( \mathrm{S}-\mathrm{H} \) bond is longer than \( \mathrm{O}-\mathrm{H} \) bond
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