Which of the following has the highest boilin | vedclass

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(D) The boiling point of hydrides of Group $15$ elements generally increases down the group due to an increase in molecular mass and the resulting inc

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$SbH_3$

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(D) The boiling point of hydrides of Group $15$ elements generally increases down the group due to an increase in molecular mass and the resulting increase in van der Waals forces of attraction. However,$NH_3$ has an anomalously high boiling point due to intermolecular hydrogen bonding. Comparing the values,$SbH_3$ has the highest boiling point among the given options.	ext{Substance}$B.pt$ 	ext{ in } $(K)$$NH_3$$238.5$$PH_3$$185.5$$AsH_3$$210.6$$SbH_3$$254.6$

Which of the following has the highest boiling point?

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