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JEE Main202229 Jul 2022Evening ShiftChemistryBiomoleculesActual

Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R . Assertion A : Amylose is insoluble in water. Reason R : Amylose is a long linear molecule with more than 200 glucose units. In the light of the above statements, choose the correct answer from the options given below.

Options

  1. ABoth A and R are correct and R is the correct explanation of A .
  2. BBoth A and R are correct and R is NOT the correct explanation of A .
  3. CA is correct but R is not correct.
  4. DA is not correct but R is correct.

Correct answer

D. A is not correct but R is correct.

Step-by-step solution

Amylose is a polysaccharide used in various industries as a functional biomaterial. It is mainly a linear component consisting of about 100-10,000 glucose monomers linked by 1,4 alpha bindings. Amylose is a polymer that can be found in starch. It is a water-soluble component that accounts for 20 to 25% of starch. So, among the given two statements first statement is false and second statement is correct.

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