- A$MnO_2$
- B$MnO$
- ✓$MnO_4^\Theta $
- D$[Fe(CN)_6]^{-4}$
$\begin{array}{ll}\mathrm{CrO}_{2} \mathrm{Cl}_{2} & +6 \\ \mathrm{MnO}_{4}^{-} & +7 \quad \text { (Maximum) } \\ \mathrm{MnO}_{2} & +4 \\ {\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}} & +3 \\ {\left[\mathrm{Co}(\mathrm{CN})_{6}\right]^{3-}} & +3 \\ \mathrm{MnO} & +2\end{array}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$\begin{array}{|c|c|c|c|}\hline {} &\text { Molisch's Test} & {\text { Barfoed Test}} & {\text { Biuret Test}} \\ \hline \text { A} & { Positive } & {\text { Negative }} & {\text { Negative }} \\ \hline \text { B } & {\text { Positive }} & {\text { Positive }} & {\text { Negative }} \\ \hline \text { C } & {\text { Negative }} & {\text { Negative }} & {\text { Positive }} \\ \hline\end{array}$
$A, B$ and $C$ are respectively


$3 s^{2}$; $3 s^{2} 3 p^{1}$; $3 s ^{2} 3 p ^{3}$; $3 s^{2} 3 p^{4}$
The correct order of first ionization enthalpy for them is.