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The increasing order of the first ionisa...

The increasing order of the first ionisation enthalpies of the elements`B,P,S` and `F` (lowest first) is:

A

`F lt S lt P lt B`

B

`P lt S lt B lt F`

C

`B lt P lt S lt F`

D

`B lt S lt P lt F`

Text Solution

Verified by Experts

The correct Answer is:
D
The value of first ionisation enthalpies for P, B, F and S are 1012, 801, 1681 and 999 `kJ mol^(-1)` respectively.
So, correct increasing order is `B lt S lt P lt F`.
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