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Which of the following has the highest proton affinity ?A. Stibin `(SbH_(3))`B. Arsinie `(AsH_(3))`C. Phosphie `(PH_(3))`D. `Ammonia (NH_(3))` |
Answer» Correct Answer - D High electron density on small `N` atom repel lone pair, making it more available for protonation. From `P` to `Bi` size of atom increases and so lone pair becomes less available for protonation. |
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