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Friday, 9 October

JEE Main Chemistry · Equilibrium

Equilibrium Constant for Modified Equations

Equilibrium Constant for Modified Equations (Equilibrium) was asked 4 times in 4 JEE Main shifts, 2020–2026, out of the 42 shifts Lumi analysed.

Times asked
4
in 4 shifts
Years
2020–2026
Usual format
Single correct
Calculation
Pattern
Frequent
repeats across shifts

How it is asked

  • K for scaled equation
  • Equilibrium constant from combined reactions

Difficulty

Easy 3Medium 1Hard 0

Where it sits

Chapter: Equilibrium. Topic: Chemical Equilibrium, 23 questions over 12 ideas.

Other repeat ideas in this topic

Every time it came

All 4 questions

Newest first, each with its options and official answer.

  1. 4 Apr 2026, Shift 1 · Q55At T(K), the equilibrium constant of A2(g)+B2(g)⇌C(g)\mathrm{A_2}(g)+\mathrm{B_2}(g)\rightleftharpoons \mathrm{C}(g) is 2.7×10−52.7\times10^{-5}. What is the…EasySingle correct
  2. 8 Apr 2026, Shift 2 · Q55Consider the following reactions in which all the reactants and products are present in gaseous state 2 xy⇌x2+y22\,xy \rightleftharpoons x_2 + y_2…MediumSingle correct
  3. 8 Apr 2024, Shift 1 · Q63For the given hypothetical reactions, the equilibrium constants are as follows : X⇌Y\mathrm{X\rightleftharpoons Y}; K1=1.0K_1=1.0…EasySingle correct
  4. 6 Sep 2020, Shift 2 · Q44The value of Kc\mathrm{K_c} is 64 at 800 K for the reaction N2(g)+3H2(g)⇌2NH3(g)\mathrm{N_2(g)+3H_2(g)\rightleftharpoons 2NH_3(g)} The value of…EasySingle correct