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Which of the following is the correct or...

Which of the following is the correct order of increasing enthalpy of vaporisation ?

A

`NH_(3) lt PH_(3) lt AsH_(3)`

B

`ArH_(3) lt PH_(3) lt NH_(3)`

C

`PH_(3) lt As H_(3) lt NH_(3)`

D

`NH_(3) lt As H_(3) lt PH_(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
Enthalpy of vaporisation `underset(b b(k)185.5)(PH_(3)) lt underset(210.6)(AsH_(3)) lt underset(238.5)(NH_(3))`
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