Amylose is a water-soluble part of starch. What is the percentage solubility of it?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 15 to 20%
Starch has two components. Amylose is the water-soluble part and forms about 15–20% of starch. The remaining 80–85% is amylopectin, which is insoluble in water and branched (C1–C4 links in the chain and C1–C6 links at the branches).
Note: It seems that there is a mistake in the original NTA paper, which prints percentage solubility of amylose when it should read percentage of amylose in starch.
NCERT (2026-27 edition):
Starch
