MCQ
Highest ionisation energy stands for
- ✓$He$
- B$C$
- C$N$
- D$H$
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| Molecule | $P-X$ (axial) bond length | $P-X$ (Equitorial) bond length |
| $PF_5$ | $a$ | $b$ |
| $PF_4CH_3$ | $c$ | $d$ |
| $PF_3 (CH_3)_2$ | $e$ | $f$ |
| $PCl_5$ | $g$ | $h$ |
According to given information choose the incorrect order of bond length
$(I)\, 1s^2\, 2s^2\, 2p^6\, 3s^2\, 3p^5$
$(II)\, 1s^2\, 2s^2\, 2p^3$
$(III)\, 1s^2\, 2s^2\, 2p^5$
$(IV)\, 1s^2\, 2s^2\, 2p^6\, 3s^2\, 3p^1$