Complete combustion of 0.74 g of an organic compound containing C, H and O gives 1.76 g of CO2 and 0.90 g of H2O (C = 12, H = 1, O = 16). The empirical formula of the compound is:

JEE Main levelSingle correct optionDifficulty 2 of 3mc023

Complete combustion of $0.74 g$ of an organic compound containing C, H and O gives $1.76 g$ of $CO X_{2}$ and $0.90 g$ of $H X_{2} O$ (C = 12, H = 1, O = 16). The empirical formula of the compound is:

Mass of C

= 1.76 \times 12/44 = 0.48

g; mass of H

= 0.90 \times 2/18 = 0.10

g; mass of O

= 0.74 - 0.48 - 0.10 = 0.16

g. Moles: C 0.040, H 0.100, O 0.010, ratio

4 : 10 : 1

, giving

C X_{4} H X_{10} O