Statement (A): Matter neither be created nor destroyed in any physical or chemical change according to Law of conservation of mass
Statement (B): $2KC l {O_{3}}_{(s)} \to 2KC l_{(s)} + {3O}_{2(g)}$ obey law of conservation of mass.
Statement (C): According to law of conservation of mass, mass of reactants is equal to mass of products

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A and B are incorrect but C is correct

All the above statements are incorrect

A and B are correct but C is incorrect

All the above statements are correct

answer is A.

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Detailed Solution

Law of conservation of mass: Matter is neither be created nor destroyed in any physical or chemical change.

Total mass of reactants is equal to total mass of products.

Ex: $\begin{array}{l} 2 K C l O_{3} \to 2 K C l + 3 O_{2} \\ 2 \times 122.5 g 2 \times 74.5 g 3 \times 32 g \\ 245 g 245 g \end{array}$

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