JEE Main 2018 — Chemical Equilibrium Question with Solution
From: JEE Main 2018 (Online) 15th April Evening Slot
Question
At a certain temperature in a vessel, 2 moles of carbon monoxide and 3 moles of chlorine were allowed to reach equilibrium according to the reaction,
CO + Cl2 COCl2
At equilibrium, if one mole of CO is present then equilibrium constant (Kc) for the reaction is :
CO + Cl2 COCl2
At equilibrium, if one mole of CO is present then equilibrium constant (Kc) for the reaction is :
Choose an option
Show full solutionCorrect option: B
Correct answer
B2.5
Step-by-step explanation
| CO | + | Cl2 | COCl2 | ||
|---|---|---|---|---|---|
| Initially number of moles | 2 | 3 | 0 | ||
| At equilibrium number of moles | 1 | 2 | 1 |
The equilibrium constant,
Kc =
=
=
= 2.5
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This is a previous-year question from JEE Main 2018, covering the Chemical Equilibrium 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.