One mole of an organic compound was found to require mol of molecular oxygen for…

CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance

Problem

One mole of an organic compound

X

was found to require

2.5

mol of molecular oxygen for complete combustion. Which of the following could be

X

? I.

\text{C}_2\text{H}_2

II.

\text{CH}_3\text{CHO}

III.

\text{C}_2\text{H}_5\text{OH}

(1) I and II only (2) I and III only (3) II and III only (4) I, II and III