The pair of m...

Question

The pair of molecules which forms the strongest intermolecular hydrogen bonds is:

S i H_{4}

and

S i F_{4}

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C H_{3} - C H_{2} - C H_{3}

and

C H C l_{3}

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H C O O H

and

C H_{3} C O O H

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all of the above

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Solution

The correct option is B $H C O O H$ and $C H_{3} C O O H$
The pair of molecules which forms the strongest intermolecular hydrogen bonds is formic acid $H C O O H$ , and acetic acid $C H_{3} C O O H$ . A hydrogen bond is the electrostatic attraction between polar molecules that occurs when a hydrogen $(H)$ atom bound to a highly electronegative atom such as nitrogen $(N)$ , oxygen $(O)$ or fluorine $(F)$ experiences attraction to some other nearby highly electronegative atom.

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