What is the value of n in the following equation? Cr 2 O7 2- +

CHEMISTRY

WAEC 2011

What is the value of n in the following equation? Cr₂O7^2- + 14H⁺ + ne^-â†’ 2Cr³⁺+ 7H₂O

A. 2
B. 3
C. 6
D. 7

Correct Answer: C. 6

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