The pair likely to form the strongest hydroge | vedclass

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Question

(B) Hydrogen bonding occurs between a hydrogen atom covalently bonded to a highly electronegative atom (like $F, O, N$) and another highly electronega

Vedclass · Accepted Answer

$HCOOH$ and $CH_3COOH$

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(B) Hydrogen bonding occurs between a hydrogen atom covalently bonded to a highly electronegative atom (like $F, O, N$) and another highly electronegative atom with a lone pair of electrons.In the pair $HCOOH$ (formic acid) and $CH_3COOH$ (acetic acid),both molecules contain a hydroxyl group $(-OH)$ and a carbonyl group $(C=O)$.These groups allow for the formation of strong intermolecular hydrogen bonds between the hydrogen of the $-OH$ group of one molecule and the oxygen of the $C=O$ group of the other.This leads to the formation of stable dimers,which represents a very strong form of hydrogen bonding compared to the other given options.

The pair likely to form the strongest hydrogen bonding is

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