General Chemistry II (Conceptual:
Final Review) Questions with
Complete Solutions 2026.
According to the like-dissolves-like principle, which of the following mixtures would likely form a
solution?
(a)hexane and water
(b)heptane and methanol
(c)methanol and cyclohexane
(d)water and 2-propanol
(e)water and carbon tetrachloride - Answer (d)water and 2-propanol
What is the strongest intermolecular force between pentane and ethanol?
(a)dispersion forces
(b)dipole-dipole forces
(c)dipole-induced dipole forces
(d)ionic bonds
(e)hydrogen bonds - Answer (c)dipole-induced dipole forces
A colloidal dispersion can be recognized by its tendency to _______________.
(a)dissociate into ions
(b)scatter or diffract light
(c)raise the boiling point of the solvent
(d)gradually crystallize
(e)There are no spectator ions - Answer (b)scatter or diffract light
A saturated aqueous solution of K2SO4was allowed to sit in an unsealed container for 24 hours.
Five percent of the water evaporated from the solution, but no K2SO4precipitated. The solution
is _______________.(a)unsaturated
(b)supersaturated
(c)dissociated
(d)dehydrated
(e)recrystallized - Answer (b)supersaturated
,Which of the following solutions has the lowest freezing point?
(a)0.50 M FeCl3
(b)0.6 M NaCl
(c)0.75 M glucose (C6H12O6)
(d)1.00 M ethylene glycol (C2H6O2)
(e)0.40 M Na3PO4 - Answer (a)0.50 M FeCl3
For a reaction which is second-order with respect to CO2, increasing the CO2concentration by a
factor of 4 _______________.
(a)has no effect on the reaction rate
(b)increases the reaction rate by a factor of 4
(c)increases the reaction rate by a factor of 8
(d)increases the reaction rate by a factor of 16
(e)increases the reaction rate by a factor of 32 - Answer (d)increases the reaction rate by a
factor of 16
When temperature increases during a chemical reaction, _______________.
(a)the rate constant increases and the reaction rate increases
(b)the rate constant remains the same and the reaction rate increases
(c)the rate constant decreases and the reaction rate increases
(d)the rate constant increases and the reaction rate stays the same
(e)both the rate constant and reaction rate stays the same - Answer (a)the rate constant
increases and the reaction rate increases
In a reaction that proceeds via a two-step mechanism, a steady-state equilibrium generally
occurs when _______________.
(a)the first step is the rate-determining step
(b)the second step has a higher activation energy than the first step
(c)the first step and second step have the same rate
(d)the first step and the second step have the same activation barrier
(e)the first step is irreversible - Answer (b)the second step has a higher activation energy than
the first step
A substance is present in the same concentration before and after a chemical reaction, but its
concentration decreases during the reaction. The substance is _______________.
(a)an activated complex
(b)a transition state
, (c)an intermediate
(d)a catalyst
(e)an elementary step - Answer (d)a catalyst
Enzymes are _______________.
(a)catalysts
(b)proteins
(c)found in living things
(d)composed of amino acids
(e)all of the above - Answer (e)all of the above
When a chemical system is at equilibrium, _______________.
(a)the ratio of product concentrations to reactant concentrations is 1:1
(b)the reaction quotient is 1
(c)the equilibrium constant is 1
(d)the rate constant of the forward reaction equals the rate constant of the reverse reaction
(e)the reaction quotient is equal to the equilibrium constant - Answer (e)the reaction
quotient is equal to the equilibrium constant
When the reaction quotient is less than the equilibrium constant, _______________.
(a)the rate of the forward reaction is greater than the rate of the reverse reaction
(b)the rate of the reverse reaction is greater than the rate of the forward reaction
(c)the equilibrium constant decreases until it is equal to Q
(d)the reaction proceeds in the reverse direction
(e)the concentration of reactants is lower than the concentration of products - Answer (a)the
rate of the forward reaction is greater than the rate of the reverse reaction
Express the equilibrium constant for the following reaction.
Pb(NO3)2(aq) + 2 NaI(aq) ⇌ PbI2(s) + 2NaNO3(aq)
(a)K = [2NaNO3]^2[PbI2]/[Pb(NO3)2][2NaI]^2
(b)K = [2NaNO3]^2/[Pb(NO3)2][2NaI]^2
(c)K = [NaNO3]^2[PbI2]/[Pb(NO3)2][NaI]^2
(d)K = [NaNO3]^2/[Pb(NO3)2][NaI]^2
(e)K = [Pb(NO3)2][NaI]^2/[NaNO3]^2 - Answer (d)K = [NaNO3]^2/[Pb(NO3)2][NaI]^2
Final Review) Questions with
Complete Solutions 2026.
According to the like-dissolves-like principle, which of the following mixtures would likely form a
solution?
(a)hexane and water
(b)heptane and methanol
(c)methanol and cyclohexane
(d)water and 2-propanol
(e)water and carbon tetrachloride - Answer (d)water and 2-propanol
What is the strongest intermolecular force between pentane and ethanol?
(a)dispersion forces
(b)dipole-dipole forces
(c)dipole-induced dipole forces
(d)ionic bonds
(e)hydrogen bonds - Answer (c)dipole-induced dipole forces
A colloidal dispersion can be recognized by its tendency to _______________.
(a)dissociate into ions
(b)scatter or diffract light
(c)raise the boiling point of the solvent
(d)gradually crystallize
(e)There are no spectator ions - Answer (b)scatter or diffract light
A saturated aqueous solution of K2SO4was allowed to sit in an unsealed container for 24 hours.
Five percent of the water evaporated from the solution, but no K2SO4precipitated. The solution
is _______________.(a)unsaturated
(b)supersaturated
(c)dissociated
(d)dehydrated
(e)recrystallized - Answer (b)supersaturated
,Which of the following solutions has the lowest freezing point?
(a)0.50 M FeCl3
(b)0.6 M NaCl
(c)0.75 M glucose (C6H12O6)
(d)1.00 M ethylene glycol (C2H6O2)
(e)0.40 M Na3PO4 - Answer (a)0.50 M FeCl3
For a reaction which is second-order with respect to CO2, increasing the CO2concentration by a
factor of 4 _______________.
(a)has no effect on the reaction rate
(b)increases the reaction rate by a factor of 4
(c)increases the reaction rate by a factor of 8
(d)increases the reaction rate by a factor of 16
(e)increases the reaction rate by a factor of 32 - Answer (d)increases the reaction rate by a
factor of 16
When temperature increases during a chemical reaction, _______________.
(a)the rate constant increases and the reaction rate increases
(b)the rate constant remains the same and the reaction rate increases
(c)the rate constant decreases and the reaction rate increases
(d)the rate constant increases and the reaction rate stays the same
(e)both the rate constant and reaction rate stays the same - Answer (a)the rate constant
increases and the reaction rate increases
In a reaction that proceeds via a two-step mechanism, a steady-state equilibrium generally
occurs when _______________.
(a)the first step is the rate-determining step
(b)the second step has a higher activation energy than the first step
(c)the first step and second step have the same rate
(d)the first step and the second step have the same activation barrier
(e)the first step is irreversible - Answer (b)the second step has a higher activation energy than
the first step
A substance is present in the same concentration before and after a chemical reaction, but its
concentration decreases during the reaction. The substance is _______________.
(a)an activated complex
(b)a transition state
, (c)an intermediate
(d)a catalyst
(e)an elementary step - Answer (d)a catalyst
Enzymes are _______________.
(a)catalysts
(b)proteins
(c)found in living things
(d)composed of amino acids
(e)all of the above - Answer (e)all of the above
When a chemical system is at equilibrium, _______________.
(a)the ratio of product concentrations to reactant concentrations is 1:1
(b)the reaction quotient is 1
(c)the equilibrium constant is 1
(d)the rate constant of the forward reaction equals the rate constant of the reverse reaction
(e)the reaction quotient is equal to the equilibrium constant - Answer (e)the reaction
quotient is equal to the equilibrium constant
When the reaction quotient is less than the equilibrium constant, _______________.
(a)the rate of the forward reaction is greater than the rate of the reverse reaction
(b)the rate of the reverse reaction is greater than the rate of the forward reaction
(c)the equilibrium constant decreases until it is equal to Q
(d)the reaction proceeds in the reverse direction
(e)the concentration of reactants is lower than the concentration of products - Answer (a)the
rate of the forward reaction is greater than the rate of the reverse reaction
Express the equilibrium constant for the following reaction.
Pb(NO3)2(aq) + 2 NaI(aq) ⇌ PbI2(s) + 2NaNO3(aq)
(a)K = [2NaNO3]^2[PbI2]/[Pb(NO3)2][2NaI]^2
(b)K = [2NaNO3]^2/[Pb(NO3)2][2NaI]^2
(c)K = [NaNO3]^2[PbI2]/[Pb(NO3)2][NaI]^2
(d)K = [NaNO3]^2/[Pb(NO3)2][NaI]^2
(e)K = [Pb(NO3)2][NaI]^2/[NaNO3]^2 - Answer (d)K = [NaNO3]^2/[Pb(NO3)2][NaI]^2
