Which of the following reactions violates the law of conservation of mass?

Subject: General Awareness | Topic: Science | Difficulty: MEDIUM

Options

1. (A) H₂ + Cl₂ → 2HCl
2. (B) 2H₂ + O₂ → 2H₂O
3. (C) 2Mg + O₂ → MgO
4. (D) Ca + Cl₂ → CaCl₂

Verified Answer

Option (C): 2Mg + O₂ → MgO

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