Question

The decreasing order of the boiling points of the following hydrides is ______.

Options

• H₂O > SbH₃ > AsH₃ > PH₃ > NH₃

• H₂O > NH₃ > SbH₃ > AsH₃ > PH₃ 

• H₂O > SbH₃ > NH₃ > AsH₃ > PH₃ 

• H₂O > PH₃ > AsH₃ > SbH₃ > NH₃ 

Answer 1

The decreasing order of the boiling points of the following hydrides is H₂O > NH₃ > SbH₃ > AsH₃ > PH₃.

Explanation:

Due to their propensity to create hydrogen bonds as a result of their ability to grow in size, H₂O and NH₃ have exceptionally high boiling temperatures. Because NH₃ has a higher boiling point, it rises through the group. In light of this, the boiling point order is H₂O > NH₃ > SbH₃ > AsH₃ > PH₃.