Chemistry · Some Basic Concepts of Chemistry

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).\n Assertion (A): One mole of any substance always contains the same number of entities, regardless of what the substance may be.\n Reason (R): The number of entities in 1 mol (Avogadro constant) is fixed at \( 6.02214076 \times 10^{23} \). \nIn the light of the above statements, choose the correct answer from the options given below:

1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
3. (A) is true but (R) is false.
4. (A) is false but (R) is true.