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The decreasing basic order of the follow...

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

A

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

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
`a`
The basic character of hydrides of 15 groups decreases dwon the perodic table because size increases down the group and `LP overline(e)'s` density decreases.
NH_(3) gt PH_(3) gt AsN_(3) gt Sbh_(3)`.
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