MCQ
How many primary amines are possible for the formula $\mathrm{C}_4 \mathrm{H}_{11} \mathrm{N}\ ?$
- AOne
- BTwo
- CThree
- ✓Four

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$Mn{O_2}(s)\, + \,4{H^ + }(aq)\, + \,2{e^ - }\, \to \, M{n^{ + 2}}(aq)\, + \,2{H_2}O(l)\,;$ $E_2^o\, = \,1.21\,\,V$
$MnO_4^{ - 1}(aq)\, + \,4{H^ + }(aq)\, + \,3{e^ - }\, \to \, Mn{O_2}(s)\, + \,3{H_2}O(l)\,;$ $E_3^o\,?$
value of $E_3^o$ will be ............ $\mathrm{V}$