JEE Main 2026 — Chemical Equilibrium Question with Solution
JEE Main 2026 (05 April Shift 2)
Question
The reaction was initiated with the amount '' of . At equilibrium it is found that the amount of remaining is at a total pressure of .
The equilibrium constant of the reaction can be calculated from the expression :
The equilibrium constant of the reaction can be calculated from the expression :
Choose an option
Show full solutionCorrect option: B
Correct answer
B
Step-by-step explanation
The reaction is
Initial moles: for , for , for
Moles at equilibrium: for , for , for
Total moles at equilibrium
Partial pressures at equilibrium:
The equilibrium constant is given by:
Answer:
Initial moles: for , for , for
Moles at equilibrium: for , for , for
Total moles at equilibrium
Partial pressures at equilibrium:
The equilibrium constant is given by:
Answer:
Practice this on the real CBT interface
Solve this JEE Main question (and the rest of the Chemical Equilibrium chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.
Solve interactively →About this question
This is a previous-year question from JEE Main 2026, 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.