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You can create printable tests and worksheets from these Grade 12 Kinetics and Equilibrium questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

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Which statement correctly describes a saturated solution?
1. The solvent can dissolve more solute if it is added.
2. The solvent cannot contain undissolved solute.
3. The dissolved form of the solute is at equilibrium with the undissolved solute.
4. The dissolved solute is not at equilibrium with the undissolved solute.
Consider the following chemical reaction:

$2CH_3CHO (g) -> CH_4(g) + CO(g)$

What is the correct expression for the rate law of this chemical reaction?
1. $Rate=k[CH_3CHO]^2$
2. $Rate=k[CH_3CHO]$
3. $Rate=k[CH_4] [CO]$
4. $Rate=k[CO]$
In a reversible chemical reaction, which of the following parameters remains unchanged even with the addition of a catalyst?
1. Equilibrium constant
2. Rate of reaction
3. Percentage yield of reaction
4. Concentration of reactants
The rate constant depends upon which of the following?
1. Temperature
2. Time
3. Initial Concentration
4. None of these
Which of the following chemical reactions is an example of a first-order reaction?
1. $N_2O_5(g) rarr N_2O_4 (g) + (1/2) O_2(g)$
2. $CH_3CHO (g) rarr CH_4(g) + CO(g)$
3. $2HI (g) rarr H_2(g) + I_2(g)$
4. $2NO + Cl_2 rarr2NOCl$
What is a simpler way of describing an elementary step?
1. Two or more collisions
2. The rate-determining step
3. The most effective collision
4. One collision or vibration
Which of the following rate laws is correct for a unimolecular reaction?
1. Rate=k[A]
2. Rate=k[A][B]
3. Rate=k[A][B][C]
4. None of the above
Which of the following reactions is an example of homogeneous catalysis?
1. Alkylation of benzene using hydrochloric acid as the catalyst
2. Hydrogenation of alkenes using finely divided Ni as the catalyst
3. Conversion of $SO_2 to SO_3$ using solid vanadium pentoxide as the catalyst
4. In Haber's process for the synthesis of ammonia, iron is used as the catalyst along with $K_2O and Al_2O_3$
The rate of reaction depends on the surface area of a catalyst in
1. homogeneous catalysis.
2. enzyme catalysis.
3. acid catalysis.
4. heterogeneous catalysis.
The molecularity and the order of reactions
1. are always same.
2. are always different.
3. may be same.
4. none of these