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Question

An organic compound on analysis gave C=5.45% , H=9.1% by mass. Its empirical formula is:

A
CHO2
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B
CH2O
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C
C2H4O
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D
C3H4O
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Solution

The correct option is C C2H4O
Of :- % age of carbon =54.5%
% age of Hydrogen =9.1%
% age of oxygen =100(54.5+9.1)
=36.4%

Element% age mass Molar mass n Ratio
O36.4 16 36.416=2.272.272.27=1
C54.5 12 54.512=4.54
4.542.27=2
H9.1 1 9.11=9.1 9.12.27=4
Formula =C2H4O
1133210_665367_ans_825ea35cb2aa4af19463a44faf136bdd.jpg

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