MCQ
Find incorrect comparison of second ionisation energy
- ✓$Te < Sb$
- B$In > Sr$
- C$He > B$
- D$Fe < Fe^+$
✓
Answer
Correct option: A.
$Te < Sb$
a
Valence shell electron.
Valence shell electron.
It is not easy to remove electron from half filled $P$ orbital.
Hence second ionisation energy of $T e$ is greater than $Sb$.
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