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Which of the following hydrides of the o...

Which of the following hydrides of the oxygen family shows the lowest boiling point?

A

`H_(2)O`

B

`H_(2)S`

C

`H_(2)Se`

D

`H_(2)Te`

Text Solution

Verified by Experts

The correct Answer is:
B
`H_(2)O` has hieghest boling point due due to `H`-bonding but down the group the boling point increase with increasing molecular weight (as magnitude of van der Waal's force increase) and thus `H_(2)S` has lowest biling point amongst the hydrides of the oxygen family.
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