Some Basic Principles Of Organic Chemistry Question 72
Question: A compound has 50% carbon, 50% oxygen and approximate molecular weight is 290. Its molecular formula is [MP PET 1995]
Options:
A) CO
B) $ C_4O_3 $
C) $ C_{12}O_9 $
D) $ C_3O_3 $
Show Answer
Answer:
Correct Answer: C
Solution:
Elements Simple ratio $ C,=,5050/12=4 $
$ (CH_2O) $ Empirical formula = $ C_4O_3 $
Empirical formula mass = 96 $ n=\frac{290}{96}=3 $
Molecular formula = $ {{(C_4O_3)} _3}=C _{12}O_9 $ .
