JEE CHEMISTRY MCQ: P-BLOCK ELEMENTS

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Analyzing +4 | -1

The

\mathrm{H-N-H}

angle in ammonia is

107.6^{\circ}

, while the

\mathrm{H}-\mathrm{P}-\mathrm{H}

angle in phosphine is

93.5^{\circ}

. Relative to phosphine, the

\mathrm{p}

-character of the lone pair on ammonia is expected to be

View answer and explanation

Correct option: A

Less

Option A (Less) is correct because a larger bond angle implies more s-character in the bonding orbitals and less p-character in the lone pair.

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