COMEDK-UGET SERIES Chemistry
Equilibrium
14 previous year questions.
Volume: 14 Ques
Yield: Medium
High-Yield Trend
2
2022 3
2021 2
2015 1
2014 1
2011 1
2010 4
2008 Chapter Questions 14 MCQs
01
PYQ 2008
medium
chemistry ID: comedk-u
When ion concentration of a solution increases, its
1
pH increases
2
pH decreases
3
ion concentration increases
4
pH remains constant.
02
PYQ 2008
easy
chemistry ID: comedk-u
In the reaction, at equilibrium
1
2
3
4
03
PYQ 2008
medium
chemistry ID: comedk-u
Dissociation constant of a weak acid is . The pH of 0.1 M solution of this acid is
1
3
2
4
3
6
4
8
04
PYQ 2008
medium
chemistry ID: comedk-u
Buffer capacity of a buffer will be maximum when
1
2
3
4
pH= zero
05
PYQ 2010
medium
chemistry ID: comedk-u
Which of the following mixtures can be used to prepare a buffer solution ?
1
2
3
4
06
PYQ 2011
medium
chemistry ID: comedk-u
According to Lewis concept, an acid is a/an
1
proton donor
2
electron pair donor
3
proton acceptor
4
electron pair acceptor
07
PYQ 2014
hard
chemistry ID: comedk-u
One mole of is heated in a closed 2 vessel. At equilibrium 40% is dissociated. Calculate the equilibrium constant.
1
0.066
2
0.154
3
0.133
4
0.266
08
PYQ 2015
medium
chemistry ID: comedk-u
Which of the following equations give ionic product of water? (i) (ii) (iii) (iv)
1
ii and iii
2
iii and iv
3
i and ii
4
iii and i
09
PYQ 2015
hard
chemistry ID: comedk-u
The numbers of ions present in 1 mL of a solution whose pH is 13
1
2
3
4
10
PYQ 2021
easy
chemistry ID: comedk-u
For the equilibrium, The value of the equilibrium constant, , is at 1069 K. The value of for the reaction at this temperature will be:
11
PYQ 2021
easy
chemistry ID: comedk-u
In the equilibrium, , if the equilibrium concentration of A is double, then the equilibrium concentration of B will be:
12
PYQ 2021
medium
chemistry ID: comedk-u
In the chemical reaction, Which statement is correct?
1
Equal volumes of N and H are reacting
2
Equal moles of N and H are reacting
3
The reaction has stopped.
4
The same amount of ammonia is formed, as it is decomposed into N and H
13
PYQ 2022
easy
chemistry ID: comedk-u
The equilibrium constant, for is 4 L mol . If the equilibrium concentration of benzene is 0.5 mol/L, then what is the value of concentration of ethylene?
14
PYQ 2022
medium
chemistry ID: comedk-u
For the reaction, H (g) + I (g) รขโกล 2 HI(g), the position of equilibrium can be shifted to the right by
1
addition of HI
2
addition of both I and HI
3
increasing temperature
4
addition of I