Increasing order of reducing nature of NH3,PH3 and AsH3 is :
A
NH3<PH3<AsH3
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B
AsH3<NH3<PH3
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C
NH3<AsH3<PH3
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D
none of these
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Solution
The correct option is ANH3<PH3<AsH3 NH3<PH3<AsH3 As and H has high difference in their sizes so the overlap will be very low and hence As can loose H very easily to act as reducing agent.