1.

State factors affecting Hydrogen bond.

Answer»

Solution :Electronegative : As the electronegative of atom with hydrogen decreases strengths of H-bond decreases.
`HF_((s)) gt HF_((l)) gt HF_((g)) `
`larr` strength INCREASES
`larr` Strength decrease
Physical state : ln solid, liquid and gas INTER- molecular DISTANCE decrease respectively so strength of H-bond also decreases
`HF_((s)) gt HF_((l)) gt HF_((g)) `
`larr` INTERMOLECULAR distance decreases
`larr` Strength of H-bood increase
So , `({:(H_(2)O_((s))),(ICe):})gt ({:(H_(2)O_((l))),("Water"):}) gt ({:(H_(2)O_((g))),("Vapour"):})`
`larr` Strength of H-bond increase


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