Q.

Regarding hydrogen peroxide correct statements are A) Its decomposition can be retarded by the addition of glycerolB) It is purified by vacuum distillationC) It is used as an antisepticD) It oxidizes potassium permanganate in acidic medium whereas it reduces potassium permanganate in basic medium

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a

A, B, C, D

b

B, C only

c

A, B, C only

d

A, C only

answer is C.

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Detailed Solution

H2O2 reducesA) MnO4- to Mn+2 in acidic mediumB) MnO4- to MnO2 in basic medium
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Regarding hydrogen peroxide correct statements are A) Its decomposition can be retarded by the addition of glycerolB) It is purified by vacuum distillationC) It is used as an antisepticD) It oxidizes potassium permanganate in acidic medium whereas it reduces potassium permanganate in basic medium