SATHEE: D And F Block Elements Question 432

D And F Block Elements Question 432

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:

$Cr_2O^{2−}_7+6e^−+14H^+→2Cr^{3+}+7H_2O$

So, 3 electrons per Cr atom is used.

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D And F Block Elements Question 432

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

Options:

Answer:

Solution:

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