Q.

At STP one liter of a gas weight 1.25 grams. The gas contains 85.71% of carbon and 14.29% of hydrogen. The formula of the compound is

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a

C2H4

b

CH4

c

C3H8

d

C2H6

answer is D.

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Detailed Solution

1 Lt gas mass = 1.25 grams

22.4 Lt gas mass = 28 grams =C2H4

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