Chemistry Practice Test – Rate of Chemical Reactions (Questions with Answers and Explanations)

CH_4(g) + Cl_2(g) —> CH₃Cl_(s) + HCl_(g)

The major factor that influences the rate of the reaction above is _______ (JAMB 2011)

A. light    B. catalyst    C. temperature    D. concentration

A chemical reaction in which the hydration energy is greater than the lattice energy is referred to as _______ (JAMB 2011)

A. a reversible   
B. a spontaneous reaction    
C. an endothermic reaction   
D. an exothermic reaction.

What bond is present in hydrated copper (IV) ions? (JAMB 2022)

A. electrovalent    B. Dative    C. Covalent    D. Metallic

The rate of a reaction usually decreases with a decrease in the concentration of reactants because ______ (JAMB 2008)

A. kinetic energy decreases
B. temperature increases
C. speed increases
D. reactants collision decreases.

The graph above demonstrates the effect of _________ (JAMB 2010)

A. surface area on the rate of reaction
B. catalyst on the rate of reaction
C. pressure on the rate of reaction
D. concentration on the rate of reaction.