0.30g of an organic compound containing C,H and O on combustion yields 0.44gCO2 and 0.18gH2O. If one mol of compound weighs 60, then molecular formula of the compound is:
A
CH2O
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B
C3H8O
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C
C4H6O
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D
C2H4O2
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Solution
The correct option is DC2H4O2 Moles of C=moles of CO2=0.4444=0.01moles
Moles of H=2×moles of H2O=2×0.1818=0.02moles
Weight of oxygen = ( 0.30 - weight of carbon and hydrogen ) = (0.3−0.01×12−0.02×1)=0.16gm