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Q.

The oxidation numbers of Mn in MnO4- and  [Mn(CN)6]3-  are respectively

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a

+ 7  and + 3

b

+ 6 and + 3

c

+ 7 and + 2

d

+ 6 and + 2

answer is A.

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Detailed Solution

MnO4-
X + 4(-2) = -1
X = +7
[Mn(CN)6]3- 
X + 6(-1) = -3
X = +3

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