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Chemistry Easy FPSC PPSC NTS Uploaded: 14 Jul 2026

Which test is used to detect the presence of starch using iodine solution?

  • A Benedict's test
  • B Biuret test
  • C Iodine test
  • D Flame test
Correct Answer: Option C — Iodine test
Explanation:
The iodine test detects starch by turning iodine solution from yellow-brown to blue-black in the presence of starch due to the triiodide ion fitting within the starch helix.
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Submitted by: PaperMCQs
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