Chemical Equilibrium Test

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Chemical Equilibrium Test - 9

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Weekly Quiz Competition

Question 1
4 / -1

Final pressure is higher than initial pressure of a container filled with an ideal gas at constant temperature. What will be the value of equilibrium constant?

A
K = 1.0

B
K = 10.0

C
K > 1.0

D
K < 1.0
Question 2
4 / -1

A
10 litre

B
4 litre

C
2 litre

D
5 litre
Question 3
4 / -1

A reversible chemical reaction is having two reactants in equilibrium. If the concentration of the reactants are doubled, then the equilibrium constant will

A
be doubled

B
become one-fourth

C
be halved

D
remain the same
Question 4
4 / -1

5 moles of SO₂ and 5 moles of O₂ are allowed to react. At equilibrium, it was found that 60% of SO₂ is used up. If the total pressure of the equilibrium mixture is 1 atm, the partial pressure of O₂ is

A
0.82 atm

B
0.52 atm

C
0.21atm

D
0.41 atm
Question 5
4 / -1

2HI (g) ⇌ H₂ + I₂ (g)
The equilibrium constant of the above reaction is 6.4 at 300 K. If 0.25 mole each of H₂ and I₂ are added to the system at same temperature, then the equilibrium constant will be

A
6.4

B
0.8

C
3.2

D
1.6
Question 6
4 / -1

For PCl₅ ⇌ PCl₃ + CL₂, initial concentration of each reactant and product is 1 M. if K_eq = 0.41 then

A
more PCl₃ will form

B
more Cl₂ will form

C
more PCl₅ will form

D
no change
Question 7
4 / -1

Which of the following is not a physical equilibrium ?

A
Ice ⇌ water

B
I₂ (s) ⇌ I₂ (g)

C
S (l) ⇌ S (g)

D
3O₂ ⇌ 2O₃
Question 8
4 / -1

For an equilibrium reaction, if the value of K_C >> 1, then the reaction favoured more towards

A
backward

B
forward

C
equilibrium will be obtained

D
reaction will stop
Question 9
4 / -1

If the value of K_C for an equilibrium reactions is 10^-4, then the reaction is in

A
backward direction

B
forward direction

C
equilibrium

D
reaction is not possible
Question 10
4 / -1

For a reaction at equilibrium, which of the following is correct?

A
Concentration of reactant = Concentration of product

B
Concentration of reactant is always greater than that of product

C
Rate of forward reaction =Rate of backward reaction

D
Q_C = K

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Chemical Equilibrium Test - 9

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Chemical Equilibrium Test - 9

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Question 1

K = 1.0

K = 10.0

K > 1.0

K < 1.0

Question 2

10 litre

4 litre

2 litre

5 litre

Question 3

be doubled

become one-fourth

be halved

remain the same

Question 4

0.82 atm

0.52 atm

0.21atm

0.41 atm

Question 5

6.4

0.8

3.2

1.6

Question 6

more PCl3 will form

more Cl2 will form

more PCl5 will form

no change

Question 7

Ice ⇌ water

I2 (s) ⇌ I2 (g)

S (l) ⇌ S (g)

3O2 ⇌ 2O3

Question 8

backward

forward

equilibrium will be obtained

reaction will stop

Question 9

backward direction

forward direction

equilibrium

reaction is not possible

Question 10

Concentration of reactant = Concentration of product

Concentration of reactant is always greater than that of product

Rate of forward reaction =Rate of backward reaction

QC = K

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more PCl₃ will form

more Cl₂ will form

more PCl₅ will form

I₂ (s) ⇌ I₂ (g)

3O₂ ⇌ 2O₃

Q_C = K