Redox Reaction By Oxidation Number Method 01 Ques9
Question: In the reaction $Ce{Cr_2O_7^{2-} + SO_3^{2-} -> Cr^{3+} + SO_4^{2-}}$ in acidic medium, what is the coefficient of $Ce{SO_3^{2-}}$ in the balanced equation?
Options:
A) 1
B) 2
C) 3
D) 6
Show Answer
Answer: c
Explanation:
A) Incorrect. This is not enough to balance the equation.
B) Incorrect. This is not enough to balance the equation.
C) Correct. The balanced equation is $Ce{Cr_2O_7^{2-} + 3SO_3^{2-} + 8H^+ -> 2Cr^{3+} + 3SO_4^{2-} + 4H_2O}$.
D) Incorrect. This is too much and would not balance the equation.
BETA
