A mixture of starch solution and potassium iodide was placed in a test tube. On...

JAMB 1988

A mixture of starch solution and potassium iodide was placed in a test tube. On adding dilute tetraoxosulphate (lV) acid and then K₂Cr₂O₇ solutions, a blue-black colour was produced. In this reaction, the?

A. iodide is oxidized
B. tetraoxosulphate (Vl) acid acts as an oxidizing agent
C. starch has been oxidized
D. K₂Cr₂O₇ is oxidized

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Correct Answer: Option C

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A mixture of starch solution and potassium iodide was placed in a test tube. On...

Correct Answer: Option C

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