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  3. Chemistry
  4. The H - N - H angle in ammonia is 107.6°, while the H - P - H angle in phosphine is 93.5°. Relative to phosphine, the p-character of the lone pair on ammonia is expected to be

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Q. The H - N - H angle in ammonia is 107.6°, while the H - P - H angle in phosphine is 93.5°. Relative to phosphine, the p-character of the lone pair on ammonia is expected to be

WBJEEWBJEE 2019Chemical Bonding and Molecular Structure

Solution:

Bond angle decreases, hence p charecter dominates on bond pair & therefore p-character decreases in lone pair.