Which of the following pairs of compounds doe | vedclass

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(B) The law of multiple proportions states that when two elements combine to form more than one compound,the masses of one element that combine with a

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$NaNO_3, CaCO_3$

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(B) The law of multiple proportions states that when two elements combine to form more than one compound,the masses of one element that combine with a fixed mass of the other are in the ratio of small whole numbers.$CuO$ and $Cu_2O$ consist of $Cu$ and $O$.$CO$ and $CO_2$ consist of $C$ and $O$.$N_2O_4$ and $N_2O_5$ consist of $N$ and $O$.$NaNO_3$ and $CaCO_3$ are different compounds containing different sets of elements ($Na, N, O$ vs $Ca, C, O$).Therefore,they do not satisfy the criteria for the law of multiple proportions.

Which of the following pairs of compounds does not demonstrate the law of multiple proportions?

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