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Q.

Two elements X and Y have atomic weight of 14 and 16.  They form a series of compounds A, B, C, D, E where X & Y is present in the ratio 1:2:3:4:5.  If the compound A has 28 parts by weight of X and 16 parts by weight of Y, then the compound C will have 28 parts by weight of X and

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a

32 parts by weight of Y

b

48 parts by weight of Y

c

64 parts by weight of Y

d

80 parts by weight of Y

answer is B.

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Detailed Solution

According to law of multiple proportions, for same weight of X, compounds A and C contains Y in the ratio 1 : 3 by weight.

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