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JEE Main levelSingle correct optionDifficulty 2 of 3cb096

The correct order of H-X-H bond angle in $BeH X_{2}$ , $BH X_{3}$ , $CH X_{4}$ and $NH X_{3}$ is

A $NH X_{3} > CH X_{4} > BH X_{3} > BeH X_{2}$
B $BH X_{3} > BeH X_{2} > CH X_{4} > NH X_{3}$
C $BeH X_{2} > CH X_{4} > BH X_{3} > NH X_{3}$
D $BeH X_{2} > BH X_{3} > CH X_{4} > NH X_{3}$

Answer: D

The shapes are linear (

18 0^{\circ}

), trigonal planar (

12 0^{\circ}

), tetrahedral (

109. 5^{\circ}

) and pyramidal with a lone pair (

10 7^{\circ}

).

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