Chemistry - Redox Reactions Question with Solution | TestHub

The $n$-factor of ${\mathrm{HNO}}_3$ in the following reaction is $\frac{4}{5}$

The reaction ${\left({\mathrm{NH}}_4\right)}_2{\mathrm{Cr}}_2{\mathrm{O}}_7\to {\mathrm{N}}_2+{\mathrm{Cr}}_2{\mathrm{O}}_3+{\mathrm{H}}_2\mathrm{O}$ is a intramolecular redox reaction

The equivalent mass of ${\left({\mathrm{NH}}_4\right)}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ in option (B) is $\frac{\mathrm{M}}{6}$ (if M is molecular mass of ${\left({\mathrm{NH}}_4\right)}_2{\mathrm{Cr}}_2{\mathrm{O}}_7$ )

In the reaction $\mathrm{Na}+{\mathrm{H}}_2\to \mathrm{NaH},{\mathrm{H}}_2$ acts as oxidising agent