277808
Which of the following statements is/are incorrect?
1 Only (i), (ii) and (iii)
2 Only (iii), (iv) and (v)
3 Only iii
4 All except v
Explanation:
(c) Starch can hold iodine $\left( {{\text{I}}_{2}} \right)$ molecules in its helical secondary structure but cellulose being non helical, can not hold ${{\text{I}}_{2}}$. Thus, cellulose does not shows blue colour when treated with ${{\text{I}}_{2}}$.