Chemical Equilibrium Quiz Online

Chemical Equilibrium concepts are essential to learning for every level in chemistry courses. Here, we have compiled many Chemical Equilibrium quizzes free for students of grades 11 and 12. We hope you will find this very useful for your regular exam preparations and entry tests at undergraduate levels, particularly for medical and engineering students (MDCAT, ECAT, NUST, NUMS, JEE, NEET).

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Results

#1. For Which System Does The Equilibrium Constant, Kc Has Units Of Concentration:

a) N2 + 3H2 ---> 2NH3

a) N2 + 3H2 ---> 2NH3

c) 2NO2 ---> N2O4

c) 2NO2 ---> N2O4

b) H2 + I2 ---> 2HI

b) H2 + I2 ---> 2HI

d) 2HF ---> H2 + F2

d) 2HF ---> H2 + F2

#2. Which Statement about The Following Equilibrium Is Correct: 2SO2 (g) + O2 (g) --> 2SO3 (g) H = – 188.3 Kj Mol–1

The Value Of Kp Is Equal To Kc

The Value Of Kp Is Equal To Kc

Adding V2O5 Catalyst Increase The Equilibrium Yield Of Sulphur Trioxide

Adding V2O5 Catalyst Increase The Equilibrium Yield Of Sulphur Trioxide

The Value Of Kp Falls With Increasing Pressure

The Value Of Kp Falls With Increasing Pressure

The Value Of Kp Falls With A Rise In Temp

The Value Of Kp Falls With A Rise In Temp

#3. The PH Of 10–3 Mole dm–3 Of An Aqueous Solution Of H2SO4 Is:

1.5

1.5

2.7

2.7

2.0

2.0

3.0

3.0

#4. The Solubility Product of AgCl is 2.0 X 10–10 mole2dm–6. The Max Concentration Of Ag+ Ions In The Solution Is:

1.41 X 10–5 mol dm–3

1.41 X 10–5 mol dm–3

2.0 X 10–10 mol dm–3

2.0 X 10–10 mol dm–3

10–10 mol dm–3

10–10 mol dm–3

4.0 X 10–20 mol dm–3

4.0 X 10–20 mol dm–3

#5. An Excess of Aqueous Silver Nitrate is added to Aqueous Barium Chloride and Precipitate Is Removed by Filtration What Are the Main Ions in the Filtrate:

Ag+ and NO Only

Ag+ and NO Only

Ag+ and Ba+2 and NO3

Ag+ and Ba+2 and NO3

Ba+2 and NO and Cl–

Ba+2 and NO and Cl–

Ba+2 and NO Only

Ba+2 and NO Only

#6. For N2 + 3H2 ---> 2NH3

Kc = Kp

Kc = Kp

Kp = Kc RT

Kp = Kc RT

Kp = Kc (RT)–2

Kp = Kc (RT)–2

Kp = Kc (RT)–1

Kp = Kc (RT)–1

#7. H2 + I2 ---> 2HI In The Above Equilibrium System, If The Conc. Of Reactants of 25oC Is Increased, the Value of Kc Will:

Remains Constant

Remains Constant

Decrease

Decrease

Depends Upon Nature of Reactants

Depends Upon Nature of Reactants

Increase

Increase

#8. In A Chemical Reaction, Equilibrium Is Said To Have Established When:

Concentrations Of Reactants And Products Are Equal

Concentrations Of Reactants And Products Are Equal

Rate Constants Of Opposing Reactions Are Equal

Rate Constants Of Opposing Reactions Are Equal

None of Above

None of Above

Opposing Reactions Stops

Opposing Reactions Stops

#9. The Relation Between Kc and Kp Is:

Kp = Kc (RT) n

Kp = Kc (RT) n

Kc = Kp (RT) n

Kc = Kp (RT) n

Kp = Kc (RT) n

Kp = Kc (RT) n

Kp = Kc

Kp = Kc

#10. The Precipitation Occurs If The Ionic Concentration Is:

Is Present At Any Moment

Is Present At Any Moment

Equal To Ksp

Equal To Ksp

Less Than Ksp

Less Than Ksp

More Than Ksp

More Than Ksp

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