MCQ
The $IUPAC$ name of the coordination compound ${K_3}[Fe{(CN)_6}]$ is
- APotassium hexacyanoferrate $ (II)$
- ✓Potassium hexacyanoferrate $ (III)$
- CPotassium hexacyanoiron $ (II)$
- DTripotassium hexacyanoiron $(II)$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

$A$. The chromate ion is square planar.
$B$. Dichromates are generally prepared from chromates.
$C$. The green manganate ion is diamagnetic.
$D$. Dark green coloured $\mathrm{K}_2 \mathrm{MnO}_4$ disproportionates in a neutral or acidic medium to give permanganate.
$E$. With increasing oxidation number of transition metal, ionic character of the oxides decreases.
Choose the correct answer from the options given below:

$S + HNO_3 \rightarrow H_2SO_4 + 6NO_2 + 2H_2O$