SATHEE: The D And F Block Elements Ques 41

The D And F Block Elements Ques 41

41. 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 $O_2$.

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The D And F Block Elements Ques 41

41. The reaction of aqueous $KMnO_4$ with $H_2 O_2$ in acidic conditions gives:

Solution:

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