Which of the following reactions is not correct according to the law of conservation of mass. - India Site

Which of the following reactions is not correct according to the law of conservation of mass.

Chemistry | Class 11 | Exercise 1 | NCERT | Some Basic Concepts of Chemistry

Which of the following reactions is not correct according to the law of conservation of mass.

(i) 2Mg(s) + O₂(g) →2MgO(s)

(ii) C₃H₈(g) + O2(g) → CO₂(g) + H₂O(g)

(iii) P₄(s) + 5O₂(g) → P₄O₁₀(s)

(iv) CH₄(g) + 2O₂(g) → CO₂(g) + 2H₂O (g)

Answer:

Correct Answer: (ii) C₃H₈(g) + O2(g) → CO₂(g) + H₂O(g)

Explanation: The number of atoms present in the reactant side is not equal to the number of atoms present in the product side.

i

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