D-And F-Block Elements Ques 71

Question: In the reduction of dichromate by Fe(II) the number of electrons involved per chromium atom is

[Pb. PMT 2001]

Options:

A) 2

B) 3

C) 4

D) 1

Show Answer

Answer:

Correct Answer: B

Solution:

Cr2O72+6e+14H+2Cr3++7H2O

So, 3 electrons per Cr atom is used.



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