Chemical Equilibrium PYQs - Last 10 Years
NEET / Chemistry / Physical Chemistry / 14 recent questions
ChemistryPhysical Chemistry2017-2026
Practice 14 NEET Chemistry questions from Chemical Equilibrium. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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2017-2026
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Last 10 Years Chemical Equilibrium Questions
Showing 14 of 14 filtered questions.
1Chemical Equilibrium
Given below are certain reactions. Identify the reaction for which $K_P \neq K_C$.
MCQ+4 / -12026
2Chemical Equilibrium
Higher yield of NO in $\mathrm{N}_2(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})$ can be obtained at $\left[\Delta \mathrm{H}\right.$ of the reaction $\left.=+180.7 \mathrm{~kJ} \mathrm{~mol}^{-1}\righ...
MCQ+4 / -12025
3Chemical Equilibrium
For the reaction $\mathrm{A}(\mathrm{g}) \rightleftharpoons 2 \mathrm{~B}(\mathrm{~g})$, the backward reaction rate constant is higher than the forward reaction rate constant by a factor of 2500 , at 1000 K.
[Given : $\mathrm{R}=0.0831 \mat...
[Given : $\mathrm{R}=0.0831 \mat...
MCQ+4 / -12025
4Chemical Equilibrium
For the reaction in equilibrium
\(\mathrm{N}_2(\mathrm{~g})+3 \mathrm{H}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NH}_3(\mathrm{~g}), \Delta \mathrm{H}=-\mathrm{Q}\)
Reaction is favoured in forward direction by:
\(\mathrm{N}_2(\mathrm{~g})+3 \mathrm{H}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NH}_3(\mathrm{~g}), \Delta \mathrm{H}=-\mathrm{Q}\)
Reaction is favoured in forward direction by:
MCQ+4 / -12024
5Chemical Equilibrium
At a given temperature and pressure, the equilibrium constant values for the equilibria are given below:
$$\begin{aligned}
& 3 \mathrm{~A}_2+\mathrm{B}_2 \rightleftharpoons 2 \mathrm{~A}_3 \mathrm{~B}, \mathrm{~K}_1 \\
& \mathrm{~A}_3 \math...
$$\begin{aligned}
& 3 \mathrm{~A}_2+\mathrm{B}_2 \rightleftharpoons 2 \mathrm{~A}_3 \mathrm{~B}, \mathrm{~K}_1 \\
& \mathrm{~A}_3 \math...
MCQ+4 / -12024
6Chemical Equilibrium
Consider the following reaction in a sealed vessel at equilibrium with concentrations of \(\mathrm{N}_2=3.0 \times 10^{-3} \mathrm{M}, \mathrm{O}_2=4.2 \times 10^{-3} \mathrm{M}\) and \(\mathrm{NO}=2.8 \times 10^{-3} \mathrm{M}\).
$$2 \math...
$$2 \math...
MCQ+4 / -12024
7Chemical Equilibrium
For the reaction \(2 \mathrm{~A} \rightleftharpoons \mathrm{B}+\mathrm{C}, \mathrm{K}_{\mathrm{c}}=4 \times 10^{-3}\). At a given time, the composition of reaction mixture is:
\([A]=[B]=[C]=2 \times 10^{-3} \mathrm{M} \text {. }\) Then, whi...
\([A]=[B]=[C]=2 \times 10^{-3} \mathrm{M} \text {. }\) Then, whi...
MCQ+4 / -12024
8Chemical Equilibrium
In which of the following equilibria, \(\mathrm{K}_p\) and \(\mathrm{K}_{\mathrm{c}}\) are NOT equal?
MCQ+4 / -12024
9Chemical Equilibrium
For a weak acid HA, the percentage of dissociation is nearly 1% at equilibrium. If the concentration of acid is 0.1 mol L\(^{-1}\), then the correct option for its K\(_a\) at the same temperature is :
MCQ+4 / -12023
10Chemical Equilibrium
Kp for the following reaction is 3.0 at 1000 K.
CO2(g) + C(s) \(\rightleftharpoons\) 2CO(g)
What will be the value of Kc for the reaction at the same temperature?
(Given : R = 0.083 L bar K\(-\)1 mol\(-\)1)
CO2(g) + C(s) \(\rightleftharpoons\) 2CO(g)
What will be the value of Kc for the reaction at the same temperature?
(Given : R = 0.083 L bar K\(-\)1 mol\(-\)1)
MCQ+4 / -12022
11Chemical Equilibrium
3O2(g) \(\rightleftharpoons\) 2O3(g)
for the above reaction at 298 K, Kc is found to be 3.0 \(\times\) 10\(-\)59. If the concentration of O2 at equilibrium is 0.040 M then concentration of O3 in M is
for the above reaction at 298 K, Kc is found to be 3.0 \(\times\) 10\(-\)59. If the concentration of O2 at equilibrium is 0.040 M then concentration of O3 in M is
MCQ+4 / -12022
12Chemical Equilibrium
Which one of the following conditions will
favour maximum formation of the product in
the reaction
A2(g)
+ B2(g) ⇌ X2(g)
, \(\Delta\)rH = –X kJ ?
favour maximum formation of the product in
the reaction
A2(g)
+ B2(g) ⇌ X2(g)
, \(\Delta\)rH = –X kJ ?
MCQ+4 / -12018
13Chemical Equilibrium
The equilibrium constants of the following are
N2 + 3H2 \(\rightleftharpoons\) 2NH3; K1
N2 + O2 \(\rightleftharpoons\) 2NO; K2
H2 + \({1 \over 2}\)O2 \(\rightleftharpoons\)
H2O; K3
The equilibrium constant (K) of the rea...
N2 + 3H2 \(\rightleftharpoons\) 2NH3; K1
N2 + O2 \(\rightleftharpoons\) 2NO; K2
H2 + \({1 \over 2}\)O2 \(\rightleftharpoons\)
H2O; K3
The equilibrium constant (K) of the rea...
MCQ+4 / -12017
14Chemical Equilibrium
A 20 litre container at 400 K contains CO2(g) at pressure 0.4 atm and an excess of SrO (neglect the volume of solid SrO). The volume of the container is now decreased by moving the movable piston fitted in the container. The maximum volume...
MCQ+4 / -12017