MCQ
$(A)$ and $(B)$ are


- AChain Isomer
- ✓Positional Isomer
- CMetamer
- DFunctional Isomer


Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
($A$) $\mathrm{C}_2^{2-}$ 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
$Fe(OH)_{3(s)} \rightleftharpoons Fe^{3+}_{(aq)} + 3OH^-_{(aq)}$
is decreased by $1/4$ times, then equilibrium concentration of $Fe^{3+}$ will increase by.....$ times$