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Correct order of 1st ionisationpotential...

Correct order of 1st ionisationpotential (IP) among following elements Be, B, C, N, O is

A

`B lt Be lt C lt O lt N`

B

`B lt Be lt C lt N lt O`

C

`Be lt B lt C lt N lt O`

D

`Be lt B lt C lt O lt N`

Text Solution

Verified by Experts

The correct Answer is:
A
The `Delta_(i)H_(1)` increase along a period but N with more symmetrical configuration has greater `Delta_(i)H_(1)` value than O. Also Be has more `Delta_(i)H_(1)` value than B due to the same reason.
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