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Question

In 2HNO₃ + 3H₂S → 2NO + 3S + 4H₂O, what is the total number of electrons transferred per mole of HNO₃?

Options

Choose one · Correct answer highlighted

Explanation

N (+5 in HNO₃) to +2 in NO: 2 N gain 6 electrons. S (-2 to 0): 3 S lose 6 electrons. Per HNO₃ = 6/2 = 3.