Question

Assertion: The total mass of the elements present in the products of a chemical reaction has to be
equal to the total mass of the elements present in the reactants .


Reason: The number of atoms of each element remains the same before and after the chemical reaction

(A) Both Assertion and reason are true and reason is correct explanation of assertion
(B) Both Assertion and reason are true and reason is not the correct explanation of assertion
(C) Assertion is true and reason is false
(D) Assertion is false and reason is true

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Answer 1

Answer:

The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.

Answer 2

Answer:

(b) both Assertion and reason are true and reason is not the correct explanation of assertion