JKCET SERIES Chemistry
Equilibrium
23 previous year questions.
Volume: 23 Ques
Yield: High
High-Yield Trend
1
2019 1
2017 3
2015 2
2014 4
2013 1
2012 4
2010 4
2009 1
2008 2
2007 Chapter Questions 23 MCQs
01
PYQ 2007
medium
chemistry ID: jkcet-20
According to Lowry and Bronsted, the strength of an acid depends upon
1
the tendency to gain electrons
2
the tendency to loss protons
3
the tendency to accept protons
4
the tendency to loss electrons
02
PYQ 2007
medium
chemistry ID: jkcet-20
Calculate the pH of a solution in which hydrogen ion concentration is -equi/ ?
1
2.3
2
2.8
3
2.9
4
2.6
03
PYQ 2008
medium
chemistry ID: jkcet-20
What happens to the yield on application of high pressure in the Habefs synthesis of ammonia?
1
Increases
2
Decreases
3
Unaffected
4
Reaction stops
04
PYQ 2009
medium
chemistry ID: jkcet-20
The solubility product of a sparingly soluble metal hydroxide at is . The value of its aqueous and saturated solution is
1
5
2
9
3
11.5
4
8.5
05
PYQ 2009
medium
chemistry ID: jkcet-20
In which one of the following equilibria, the increase of pressure over the equilibrium will favour the reaction?
1
Pecomposition equilibrium of HI
2
Formation equilibrium of
3
Decomposition equilibrium of
4
Formation equilibrium of
06
PYQ 2009
medium
chemistry ID: jkcet-20
Which one of the following is the correct quadratic form of the Ostwald's dilution law equation?
1
2
3
4
07
PYQ 2009
medium
chemistry ID: jkcet-20
Which one of the following aqueous solutions of salts has the lowest, pH value?
1
2
3
4
08
PYQ 2010
medium
chemistry ID: jkcet-20
To an equilibrium mixture of some helium, an inert gas, is added at constant volume. The addition of helium causes the total pressure to double, which of the following is true?
1
The concentration of all three gases is unchanged
2
The concentration of sulphur trioxide increases
3
The number of moles of sulphur trioxide increases
4
The concentration of sulphur dioxide increases
09
PYQ 2010
medium
chemistry ID: jkcet-20
What will be the resultant when of, an aqueous solution of is mixed with of an aqueous solution of ?
1
2.699
2
13.3
3
11.301
4
1.33
10
PYQ 2010
medium
chemistry ID: jkcet-20
For the reaction, at Find the value for the following reaction,
1
6.4
2
0.02
3
50
4
4.6
11
PYQ 2010
medium
chemistry ID: jkcet-20
Identify the substance whose solution is basic?
1
Ammonium chloride
2
Ammonium acetate
3
Ammonium sulphate
4
Sodium acetate
12
PYQ 2012
hard
chemistry ID: jkcet-20
According to Le-Chatelier's principle, the equilibrium constant of a reversible reaction will not shift by
1
increasing the temperature of an exothermic reaction
2
increasing the temperature of an endothermic reaction
3
changing the concentrations of the reactants
4
the effect of a catalyst
13
PYQ 2013
medium
chemistry ID: jkcet-20
The in a solution is . The of the solution is
1
1
2
0
3
14
4
14
PYQ 2013
medium
chemistry ID: jkcet-20
The solubility of is . Its would be
1
2
3
4
15
PYQ 2013
medium
chemistry ID: jkcet-20
In which of the following reactions, increase in pressure will favour the forward reaction?
1
2
3
4
16
PYQ 2013
medium
chemistry ID: jkcet-20
Which of the following is a Lewis acid?
1
2
3
4
17
PYQ 2014
medium
chemistry ID: jkcet-20
The mixture of reactants and products in the equilibrium state is called?
1
Chemical mixture
2
Equilibrium mixture
3
Chemical equilibrium
4
Dynamic equilibrium
18
PYQ 2014
medium
chemistry ID: jkcet-20
How much is the of human blood?
1
5.2
2
8.3
3
6.3
4
7.4
19
PYQ 2015
medium
chemistry ID: jkcet-20
If the solubility of a sparingly soluble salt is , the solubility product is
1
2
3
4
20
PYQ 2015
medium
chemistry ID: jkcet-20
for the reaction is
1
2
3
4
21
PYQ 2015
medium
chemistry ID: jkcet-20
For a reaction, ; the partial pressure of and are and atm, respectively. for the reaction is
1
0.5
2
2
3
16
4
4
22
PYQ 2017
medium
chemistry ID: jkcet-20
What will be the at which precipitation of will take place from a
solution containing ion? of
1
2
3
4
23
PYQ 2019
medium
chemistry ID: jkcet-20
The hydroxyl ion concentration in a solution having value will be
1
2
3
4