The dand fblock elements - Result Question 46
####46. The reaction of aqueous $KMnO_4$ with $H_2 O_2$ in acidic conditions gives:
[2014]
(a) $Mn^{4+}$ and $O_2$
(b) $Mn^{2+}$ and $O_2$
(c) $Mn^{2+}$ and $O_3$
(d) $Mn^{4+}$ and $MnO_2$
Show Answer
Solution:
- (b) $2 KMnO_4+3 H_2 SO_4+5 H_2 O_2 \longrightarrow$
$ K_2 SO_4+2 MnSO_4+8 H_2 O+5 O_2 $
i.e. $Mn^{2+}$ ion and $O_2$.
