1.

The decreasingnucelophilic order of the following compounds is: i. NH_(3), ii. PH_(3), iii. AsH_(3), iv. SbH_(3)

Answer»

`(i) gt (ii) gt (III) gt (iv)`
`(iv) gt (iii) gt (ii) gt (i)`
`(ii) gt (i) gt (iii) gt (iv)`
`(ii) gt (i) gt (iv) gt (iii)`

SOLUTION :Weaker the base or stornger the ACID, stonger is the leaving group.
`SbH_(3) gt AsH_(3) gt PH_(3) gt NH_(3)`


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