1.

Correct order of decreasing boiling points is :

Answer»

`HF gt HI gt HBR gt HCL`
`H_(2)O gt H_(2)Te gt H_(2)SE gt H_(2)S`
`Br_(2)gt Cl_(2) gt F_(2)`
`CH_(4) gt GeH_(4) gt SiH_(4)`

Answer :A::B::C


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