A&R - Desirable and undesirable changes — task. Physics CBSE Live product, Class 7 (2026-27).

Read the Assertion and Reason, then choose the correct answer:

1. Assertion (A): Food spoilage is an undesirable change.

Reason (R): Spoiled food may contain harmful microorganisms that can cause diseases.

Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A).
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
Assertion (A) is true, but Reason (R) is false.
Assertion (A) is false, but Reason (R) is true.

2. Assertion (A): Cooking food is a desirable change.

Reason (R): Cooking changes the taste, texture, and smell of food.

Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A).
Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of Assertion (A).
Assertion (A) is true, but Reason (R) is false.
Assertion (A) is false, but Reason (R) is true.

Previous task

Exit to the topic

Next task

Send feedback

Did you find an error?

Send it to us!

5. A&R - Desirable and undesirable changes

Question: