Chemistry · JEE | Some Basic Concepts of Chemistry

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): The SI unit of density (\( \text{kg m}^{-3} \)) is quite large, and chemists often express density in \( \text{g cm}^{-3} \). Reason (R): Density is defined as mass per unit volume, and laboratory quantities of chemicals are usually measured in grams and cubic centimeters. In the light of the above statements, choose the correct answer from the options given below:

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