1.

The boiling points of HF, HCI, HBr and HI follow the order

Answer»

`HF gt HCI gt HBr gt HI`
`HF gt HI gt HBr gt HCl`
`HI gt HBr gt HCl gt HF`
`HCl gt HF gt HBr gt HI`

Solution :Boiling POINT depends on the following factors
(1) Stronge H-bonding that increase boiling point.
(2) VAN der Waal.s force increase boiling point. Van der WAALS. force increases with increase in atomic radius.
(3) Increase in the molecular weight increases boiling point.
Factor (2) and (3) give us the following order:
`HI > HBr > HCl`
Factor (1) makes HF highest boiling point containing.


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