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Photosynthesis — Biology STD 10 — Question

ICSE BoardEnglish MediumSTD 10BiologyPhotosynthesis1 Mark
MCQ
The chemical used to test starch:
  • A
    Soda lime
  • B
    Carbolic acid
  • C
    Methylated spirit
  • ✓
    Iodine
✓

Answer

Correct option: D.
Iodine
(d) Iodine
Explanation :
Iodine is used to test for the presence of starch. When iodine solution is added to a sample containing starch, it turns from brown to a deep blue-black colour, indicating the presence of starch.

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