Q.

In acidic medium potassium dichromate acts as an oxidant according to the equation,Cr2O7-2+14H++6e−→2Cr3++7H2O. What is the equivalent weight of K2Cr2O7? (mol. Wt. = M)

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a

M

b

M/2

c

M/3

d

M/6

answer is D.

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Detailed Solution

Since it accept 6e- itsEquivalent weight =M6

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In acidic medium potassium dichromate acts as an oxidant according to the equation,Cr2O7-2+14H++6e−→2Cr3++7H2O. What is the equivalent weight of K2Cr2O7? (mol. Wt. = M)