A) 15%
B) 20%
C) 40%
D) 45%
Correct Answer: C
Solution :
Acetic acid\[(C{{H}_{3}}COOH)\]contains 2 C atoms Molecular mass of\[C{{H}_{3}}COOH\] \[=12+1\times 3+12+16\times 2+1=60\] \[\because \]60 g of \[C{{H}_{3}}COOH\] contains 24g of carbon atom \[\therefore \]100 g of \[C{{H}_{3}}COOH\] contains \[=\frac{24}{60}\times 100\]\[=40%\]
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