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In the following questions, a statement of assertion (A) is followed by a statement of reason (R)
(1) Assertion and Reason both are correct but Reason is not the correct explanation for assertion.
(2) Assertion and Reason both are incorrect
(3) Assertion and Reason both are correct and Reason is correct explanation for assertion.
(4) Assertion is Correct but Reason is incorrect.
Assertion: Starch can hold I2 but Cellulose cannot hold .
Reason: Starch contains complex helices and cellulose doesn’t contain complex helices .
Assertion and Reason both are correct but Reason is not the correct explanation for assertion.
Assertion and Reason both are incorrect
Assertion and Reason both are correct and Reason is correct explanation for assertion.
Assertion is Correct but Reason is incorrect.
Answers (1)
The assertion states that starch can hold iodine (I2), while cellulose cannot. This statement is correct. When iodine is added to starch, it forms a blue-black color complex, indicating the presence of starch. On the other hand, cellulose does not form a similar complex with iodine.
The reason provided states that starch contains complex helices, while cellulose doesn't contain complex helices. This statement is also correct. Starch is made up of glucose molecules arranged in a helical structure, allowing iodine to fit within the helices and form the blue-black complex. In contrast, cellulose is made up of glucose molecules arranged in a straight, linear fashion, which doesn't allow for the formation of a similar complex with iodine.
Option 3 is the correct answer.
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