Learn more about the properties, composition, and structure of substances (elements and compounds) with these Chemistry questions and answers. This Test can be used by students preparing for Chemistry in JAMB, WAEC, NECO or Post UTME.
Which type of reaction is illustrated by the following equation? C12H26 → 5C 2H4 + C 2H6
Addition
Cracking
Hydrogenation
Polymerization
Correct answer is B
No explanation has been provided for this answer.
Ethene molecules can be added to one another to form a long chain compound called a
dimer
monomer
polymer
trimer
Correct answer is C
No explanation has been provided for this answer.
The reaction that occurs all the anode when CuSO4(aq) is electrolyzed using carbon electrode is
2H - (aq) + 2e → H 2(g)
Cu2+ (aq) + 2e → Cu (s)
4OH (aq) -4e → 2H2O(l) + O2 (g)
SO4(aq)2 -2e → SO 2(g) + O2(g)
Correct answer is C
No explanation has been provided for this answer.
Addition of iron catalyst
Increase in the temperature of the system
Increase in the volume occupied by reactants
Increase in the total pressure of the system
Correct answer is D
No explanation has been provided for this answer.