JEE Main 2016 — Hydrocarbons Question with Solution
From: JEE Main 2016 (Offline)
Question
At 300 K and 1 atm, 15 mL of a gaseous hydrocarbon requires 375 mL air containing 20% O2 by volume
for complete combustion. After combustion the gases occupy 345 mL. Assuming that the water formed is
in liquid form and the volumes were measured at the same temperature and pressure, the formula of the hydrocarbon is:
Choose an option
Show full solutionCorrect option: A
Correct answer
AC3H8
Step-by-step explanation
Volume of used
From the reaction of combination
requires
So,
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This is a previous-year question from JEE Main 2016, covering the Hydrocarbons chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.