MCQ
The stability of ferric ion is due to:
- AHalf field f-orbital
- BHalf field d-orbital
- CComplete field f-orbital
- DComplete field d-orbital
Explanation:
Fe3+ = 1s22s22p63s23p63d5
d orbital is half filled.So ferric ion is stable.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.



$6 OH ^{-}+ Cl ^{-} \rightarrow ClO _{3}^{-}+3 H _{2} O +6 e ^{-}$
If only $60 \%$ of the current is utilized in the reaction, the time (rounded to the nearest hour) required to produce $10\, g$ of $KCIO _{3}$ using a current of $2\, A$ is..........
(Given : $F =96,500\, C\, mol ^{-1}$ molar mass of $\left. KClO _{3}=122\,gmol ^{-1}\right)$