Question

which of the following compounds can not illustrate the law of multiple proportions.
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Answer 1

Answer:

the low of multiple proportions states that when two elements combain with each other to form more than one compound the weight of one element that combine with a fixed weight of the other are in a ratio of small whole number .

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Answer 2

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Answer:

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Na2S

Explanation:

according to law of multiple proportions, when two elements combine to form more than one compound, the mass of one element, which combines with a fixed mass of the other element, will always be in simple ratio.

for example, if C and O combine two form CO and CO2,

here in CO , 12g of C ⇔16 g of O

or, 1g of C ⇔ 1.33g of O

in CO2, 12g of C ⇔ 32g of O

or, 1g of C ⇔ 2.66 of O

it is clear that 1.33 : 2.66 = 1 : 2 is in simple ratio so, CO and CO2 follows law of multiple proportions.

from above explanation, all the first three options follow the law but last option , (d) Na2S , NaF doesn't follow. because here three elements are given Na, S and F . but law of multiple proportions is valid for two elements.

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