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NEET levelSingle correct optionDifficulty 1 of 3cb086

Which molecule has the smallest bond angle?

A $CH X_{4}$
B $NH X_{3}$
C $H X_{2} O$
D $BF X_{3}$

Answer: C

The angles are about

109. 5^{\circ}

in

CH X_{4}

,

10 7^{\circ}

in

NH X_{3}

,

104. 5^{\circ}

in

H X_{2} O

and

12 0^{\circ}

in

BF X_{3}

. Two lone pairs on oxygen compress the H-O-H angle most.

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