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Q.

1.0g of an oxide of A contained 0.5g of A. 4.0g of another oxide of A contained 1.6g of A. The data indicate the law of ?

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a

Reciprocal proportions.

b

Constant proportions

c

Conservation of energy

d

Multiple proportions

answer is D.

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Detailed Solution

According to law of multiple proportions, if two elements combines to form more than one compound, then the masses of one element that combine with a fixed mass of the other element, are in the ratio of small whole numbers.

In the given problem, A with mass of 0.5 g forms an oxide having mass,1.0 g.

This means that mass ratio of A and oxygen is 0.5:0.5 or 1:1.

Same element, A with mass 1.6 g forms another oxide of mass 4.0 g.

This means that mass ratio of A and oxygen is 1.6:2.4 or 2:3.

This implies that it follows law of multiple proportion.

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