1.
If the concentration of B is increased at fixed temperature, in the reaction, A + 2B ⇋ C + 3D the equilibrium constant of reaction will be
A. 
B. 
C. 
D. 
First increases then decreases
2.
The value of Kc for the reaction
N2(g) + 3H2 (g) ⇌ 2 NH3 (g)
is 0.65 at 300°C. Find the value of Kp at 300°C.
A. 
B. 
C. 
D. 
3.
The yield of the product will be higher if the value of K is
A. 
B. 
C. 
D. 
4.
If 0.5 mole H2 is reacted with 0.5 mole I2 in a ten-litre container at 444oC and at same temperature value of equilibrium constant Kc is 49, the ratio of [HI] and [I2] will be:
A. 
B. 
C. 
D. 
5.
One mole PCl5 is heated in a closed container of one litre capacity. At equilibrium, 20% PCl5 is not dissociated. What would be the value of Kc?
A. 
B. 
C. 
D. 
6.
How many moles per liter of PCl5 has to be taken to obtain 0.1 mole Cl2, if the value of equilibrium constant Kc is 0.04?
A. 
B. 
C. 
D. 
7.
For a reaction N2+3H2⇌2NH3, the value of Kc depends upon:
A. 
B. 
C. 
D. 
8.
For a any reversible reaction. If increases concentration of reactants. Then effect on equilibrium constant :
A. 
Depends on the concentration
B. 
C. 
D. 
9.
Which of the following explains the effect of a catalyst on the rate of a reversible reaction?
A. 
It gives new reaction path with low activation energy
B. 
It shifts equilibrium to right side
C. 
It decreases the kinetic energy
D. 
It decreases the rate of backward reaction
10.
if some he gas is introduced into equilibrium pcl5=pcl3+cl2 at const pressure and temp then kc will:
A. 
B. 
C. 
D. 
11.
In a chemical equilibrium A+B⇌C+D when one mole each of the two reactants are mixed, 0.4 mole each of the products are formed.The equilibrium constant calculated is
A. 
B. 
C. 
D. 
12.
Evaluate Kp for the reaction : H2+I2⇌2HI. 2 moles each of H2 and I2 are taken initially equilibrium moles of HI are 2 :
A. 
B. 
C. 
D. 
13.
The equilibrium 2SO2(g)+O2(g)⇌2SO3(g) shifts forward if:
A. 
B. 
C. 
Small amount of reactant are used
D. 
14.
For the equilibrium reaction, H2O(l)⇌H2O(g), what happens, if pressure is increased.
A. 
B. 
Boiling point of water is increased
C. 
D. 
15.
For the equilibrium, 2NOCl(g) ⇌ 2NO(g) + Cl2(g) the value of the equilibrium constant, Kc is 3×10–6 at 1069 K. Calculate the Kp for the reaction at this temperature?
A. 
B. 
C. 
D. 
16.
The unit of ionic product of water Kw is:
A. 
B. 
C. 
D. 
17.
The common ion effects is shown by which of the following sets of solutions:-
A. 
B. 
C. 
D. 
18.
The number of milli equivalents in 100 ml solution of 0.5 N HCl
A. 
B. 
C. 
D. 
19.
The process of Neutralization invariably depends on:-
A. 
B. 
C. 
D. 
20.
If s and S are respectively solubility and solubility product of a sparingly soluble binary electrolyte then:
A. 
B. 
C. 
D. 
21.
Assertion: For the reaction H2 + I2 ⇌ 2HI ,Kp=Kc.
Reason- Kp for all gaseous reaction is equal to Kc.
Choose the answers appropriately.
A: If both Assertion and Reason are True and Reason is the correct explanation of Assertion.
B : If both Assertion and Reason are True but Reason is the wrong explanation of Assertion.
C : If Assertion is True but Reason is False.
D : If both Assertion and Reason are False.
A. 
B. 
C. 
D. 
22.
Assertion: Effect of temperature on Kc and Kp depends on enthalpy change.
Reason: Increase in temperature shifts the equilibrium position to the product side in endothermic direction.
Choose the answers appropriately.
A: If both Assertion and Reason are True and Reason is the correct explanation of Assertion.
B : If both Assertion and Reason are True but Reason is the wrong explanation of Assertion.
C : If Asertion is True but Reason is False.
D : If both Assertion and Reason are False.
A. 
B. 
C. 
D. 
23.
For the reaction at certain temperature A(g)+B(g)⇌C(g), there will be no effect by addition of inert gas at constant volume.
REASON
Equilibrium constant depends only on temperature.
Choose the answers appropriately.
A: If both Assertion and Reason are True and Reason is the correct explanation of Assertion.
B : If both Assertion and Reason are True but Reason is the wrong explanation of Assertion.
C : If Assertion is True but Reason is False.
D : If both Assertion and Reason are False.
A. 
B. 
C. 
D. 
24.
8 g NaOH is dissolved in one litre of solution, the molarity of the solution is
A. 
B. 
C. 
D. 
25.
Which of the following has maximum solubility?
A. 
B. 
C. 
D. 
AuCl ( Ksp = 1.7 × 10-10)