Home
Class 11
BIOLOGY
Assertion : Starch give Iodine test. R...

Assertion : Starch give Iodine test.
Reason : Starch can hold `I_(2)` molecules in the helical portion.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion

B

If both assertion and reason are true and the reason is not the correct explanation of the assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
A
(A)Starch gives Iodine test. The starch-`I_(2)` is blue in colour because starch can hold `I_(2)` molecules in the helical portion.
Promotional Banner

Topper's Solved these Questions

  • BIOMOLECULES

    A2Z|Exercise Section -c Previous Years Examination Questions (neet/aipmt Questions)|116 Videos

  • BIOMOLECULES

    A2Z|Exercise Section -c Previous Years Examination Questions (aiims Question)|20 Videos

  • BIOMOLECULES

    A2Z|Exercise Section A : Topicwise Questions Topic :4 Enzymes|51 Videos

  • BIOLOGICAL CLASSIFICATION

    A2Z|Exercise Mock Test Assertion - Reasoning Question|5 Videos

  • BODY FLUIDS AND CIRCULATION

    A2Z|Exercise Section D: Chapter-end Test|50 Videos

Similar Questions

Explore conceptually related problems

Which of the following statements are CORRECT ? I. Amino acids are organic compounds containing an amino group and an acidic group as substituents on the same carbon i.e., the a - carbon II. Primary metabolites have identifiable functions and play known roles in normal physiological processes. III. Ribulose Bisphosphate Carboxylase - Oxygenase (RUBlSCO) is the most abundant protein in the whole of the biosphere . IV. Starch forms helical primary strutures and it can hold I_2 molecules in the helical portion.

Assertion : Starch is the storage polysaccharide in plants . Reason : Starch is a polymer of beta - glucose .

Assertion: Isobutanal does not give iodoform test. Reason : It does not have alpha -hydrogen.

Read the assertion and reason carefully to mark the correct option out of the option given below: Assertion: Starch is hydrolysed by ptyalin to maltose. Reason : Sucrase hydrolyses sucrose to lactose.

Assertion : all monosaccharides give benedict's test Reason : all monosacchaide contain free aldehyde or ketonic group

Assertion:Isobutanal does not give iodoform test. Reason:It does not have alpha -hyfrogen.

Which Statements about Carbohydrates are CORRECT ? I. Inulin is a polymer of sucrose . II. Glucose is a respiratory substrate and is also called fruit sugar . III. Starch forms helical secondary structures in which it can hold I_2 molecules. IV. The variant of cellulose in animals is glycogen .