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Which of the following represents correct decreasing order of polarity?

Which of the following represents correct decreasing order of polarity?

Options

(a) NH₃ > PH₃ > AsH₃ > SbH₃
(b) NH₃ >SbH₃ > AsH₃ > PH₃
(c) SbH₃ > AsH₃ > PH₃ > NH₃
(d) NH₃ > AsH₃ > SbH₃ > PH₃

Correct Answer:

NH₃ >SbH₃ > AsH₃ > PH₃

Explanation:

Electronegativities of H, Sb, As, P and N are 2.1, 1.9, 2.0, 2.1 and 3.0 respectively.

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