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Consider the following reaction equation: SO42-(aq) + 2H+(aq) + ye- \(\to\) SO42-(aq) + H2O(1). The...

Chemistry
WAEC 2015
Consider the following reaction equation:
SO42-(aq) + 2H+(aq) + ye- \(\to\) SO42-(aq) + H2O(1).

The value of y in the equation is
  • A. 2
  • B. 3
  • C. 4
  • D. 6
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Correct Answer: Option A
Explanation
from the reaction, the total charge on the left side = The total charge on the right side

-2 + 2 + y = -2 : y = -2 : y = 2
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