QQuestion
Give one example of reducing property of H₂S.
✓Answer
Hydrogen sulphide (H₂S) reduces acidified potassium dichromate solution from orange to green.
Chemical Equation:
K₂Cr₂O₇ + 4H₂SO₄ + 3H₂S → Cr₂(SO₄)₃ + K₂SO₄ + 7H₂O + 3S
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