Question

ASSERTION (A): During a chemical reaction, the sum of the masses of the

reactants and products remains unchanged. This is known as the Law of

Conservation of Mass.

REASON (R): In a pure chemical compound, elements are always present in a

definite proportion by mass.

a) Both A and R are true, and R is the correct explanation of A.

b) Both A and R are true, but 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 1

Answer:

Answer should be B

Both A and R are true, but R is not the correct explanation of A

Answer 2

Answer:

b)both A and R are true , but R is not the correct explanation of A

Explanation:

the reason is the definition of the law of constant proportion