Assertion (A): Carbon dioxide is a compound
Reason (R) : Carbon and Oxygen combine together in the ratio 3:8 by mass.

Options

A. Both A and R are individually true and R is the correct explanation of A
B. Both A and R are individually true and R is NOT the correct explanation of A
C. A is true but R is false
D. A is false but R is true

Answer

A

Explanation

A compound is a substance made up two or more elements chemically combined in a fixed proportion by mass. Hence both (A) and (R) are true and R is the correct explanation of (A)