Question

Study the two statements labelled as Assertion (A) and Reason (R).

Assertion (A) : Iodine when added in milk, changes milk colour to dark blue.

Reason (R) : Starch is present in milk.

• A. Both (A) and (R) are true and (R) is the correct explanation of (A).
• B. Both (A) and (R) are true and (R) is not the correct explanation of (A).
• C. (A) is true and (R) is false.
• D. (A) is false and (R) is true.

Answer 1

The correct option is A Both (A) and (R) are true and (R) is the correct explanation of (A).

Iodine test is used to detect the presence of starch. If the colour of the milk changes to dark blue after adding iodine, it shows the presence of starch confirming the milk is adulterated.