Multiple choice

Directions: There are two statements, one labeled the Assertion (A) and the other labeled the Reason (R). Examine the statements and decide if the Assertion A and Reason R are individually true and if so, whether the reason is the correct explanation of the assertion. Select your answers to the question from the codes given below:

Assertion (A): Isotopes can be used as tracer elements. Reason (R): They are effective even when introduced in small amounts.

  1. Both A and R are true and R is the correct explanation of A.

  2. Both A and R are true and R is not the correct explanation of A.

  3. A is true but R is false.

  4. A is false but R is true
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Isotopes are used as tracers because they can be detected in very small amounts using specialized equipment, allowing scientists to track biological or chemical processes.

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