CSEC Chemistry · May/June 2010 · Paper 1 · Question Q25
A solution, when treated with the gas sulphur dioxide, becomes green. Which of the following does the solution contain?
- (A)Potassium nitrate
- (B)Potassium sulphate
- (C)Potassium dichromate(VI)
- (D)Potassium manganate(VII)
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