Identify a hydride with highest boiling point from following?

Step-by-step solution

The hydrides of Group 16 elements are H ₂ O , H ₂ S , H ₂ Se , and H ₂ Te . Generally, the boiling point of hydrides increases down the group due to an increase in molecular mass and van der Waals forces. However, H ₂ O has an exceptionally high boiling point due to the presence of strong intermolecular hydrogen bonding, which is absent in the other hydrides. The order of boiling points is H ₂ S Thus, H ₂ O has the highest boiling point. Answer: H ₂ O