The weight ratio of two elements A and B which combine with the fixed weight of C separately is either the same or some simple whole number multiple of the weight ratio in which A and B combine together. This statement explains :

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law of constant composition.

law of reciprocal proportion.

law of multiple proportion.

law of conservation of mass.

answer is B.

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Detailed Solution

The weight ratio of two elements A and B which combine with the fixed weight of C separately is either the same or some simple whole number multiple of the weight ratio in which A and B combine together. This statement explains the Law of reciprocal proportion.
For example, 23 g of Na combines with 35.5 g of Cl and 1 g of H to form NaCl and NaH. Hence, 35.5 g of Cl and 1 g of H will combine to form HCl.

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