The decreasing order of polarity of the bonds in `NH_3, PH_3, AsH_3 and SbH_3` is in the order
The decreasing order of polarity of the bonds in `NH_3, PH_3, AsH_3 and SbH_3` is in the order
A. `NH_3 gt PH_3 gt AsH_3 gt SbH_3`
B. `SbH_3 gt AsH_3 gt PH_3 gt NH_3`
C. `NH_3gt AsH_3 gt PH_3 gtSbH_3`
D. `NH_3 gt SbH_3 gt AsH_3 gt PH_3`
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Correct Answer - D
Electronegativities of H (2.1), N(3.0), P(2.1), As (2.0), Sb(1.9) Clearly indicate that the correct order of decreasing polarity is
`NH_3 gt SbH_3 gt AsH_3 gt PH_3`
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