Some Basic Concepts Of Chemistry Question 35

Question: A compound contains 54.55 % carbon, 9.09% hydrogen, 36.36% oxygen. The empirical formula of this compound is:

Options:

A) $ C _3H _5O $

B) $ C _4H _8O _2 $

C) $ C _2H _4O _2 $

D) $ C _2H _4O $

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Answer:

Correct Answer: D

Solution:

[d] C (54.55) =54.55/12=4.5 4.5/2.27=2

H (9.09) 9.09/1-9.09 9.09/2.27=4

O (36.36)_ 36.36/16=2.27 2.27/2.27= 1

Hence empirical formula of the compound $ =C _2H _4O $



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