MCQ
Which of the following sequence is correct as per Aufbau principle
- A$3s < 3d < 4s < 4p$
- ✓$1s < 2p < 4s < 3d$
- C$2s < 5s < 4p < 5d$
- D$2s < 2p < 3d < 3p$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Product $(A)$ is
($A$) $\mathrm{C}_2^{2-}$ is expected to be diamagnetic
($B$) $\mathrm{O}_2{ }^{2+}$ is expected to have a longer bond length than $\mathrm{O}_2$
($C$) $\mathrm{N}_2^{+}$and $\mathrm{N}_2^{-}$have the same bond order
($D$) $\mathrm{He}_2^{+}$has the same energy as two isolated He atoms