A gas that will turn orange potassium heptaoxodichromate (lV) solution to clear green is?
CHEMISTRY
JAMB 1993
A gas that will turn orange potassium heptaoxodichromate (lV) solution to clear green is?
- A. sulphur (ii) oxide
- B. hydrogen sulphide
- C. sulphide (lV) oxide
- D. hydrogen chloride
Correct Answer: A. sulphur (ii) oxide
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