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Q.

The equivalent mass of K2Cr2O7 when it acts as oxidising agent in acidic medium, is equal to

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a

M/5

b

M/6

c

M/3

d

M/2

answer is C.

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Detailed Solution

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Potassium dichromate in an acidic medium is a strong oxidizer. It means it gains electrons during the redox reaction. The total number of electrons involved in this change is 6. Hence the equivalent weight is M/6..

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