Boiling point of hydrides of `V` `A`, `VI` `A` & `VII` `A` decrease from top to bottom but `NH_3, H_2O` & `HF` show a su

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Q 1223512441.     Boiling point of hydrides of `V` `A`, `VI` `A` & `VII` `A` decrease from top to bottom but `NH_3, H_2O` & `HF` show a sudden increase why ?
A

`H`-bonding

B

molecular weight

C

Both

D

None of these

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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