Chemical Equilibrium Set 4

Results

#1. A reaction is reversible because

reactants are reactive

products are reactive

products are stable

reactants are stable

#2. Which PH is considered as basic

#3. The sum of PH and POH is

13.5

#4. A buffer solution can be prepared by mixing

a strong acid and weak base

a weak acid and weak base

a strong acid and its salt

a weak base and its salt with strong acid

#5. Law of mass action was presented by

Henderson

Lewis

Guldberg and Waage

Arrehenius

#6. The unit of Kc for reaction N2 + O2 2NO

mol dm–3

mol–1 dm3

mol–2 dm6

no units

#7. PH of pure water is

(a) 3.2

4.2

7.0

#8. Which of following change will favour the formation of more SO3 at equilibrium 2SO2 + O2 2SO3 + heat

by adding SO3 at equilibrium

by increasing temp

by decreasing temp

by decreasing pressure

#9. When pressure is applied to the given equilibrium ice water which of the following will happen

more ice will be formed

more water will be formed

equilibrium will not be disturbed

water will formed

#10. Which of following change will favour the formation of more HI in the given reaction H2 + I2 2HI

increasing pressure

decreasing pressure

by adding more HI

by adding more H2 and I2

Finish