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 of the following exhibits resonance?
Benzene
Butane
Pentene
Octana
Hexene
Correct answer is A
No explanation has been provided for this answer.
If the third member of a homologous series is C3H8, the fifth member will be
C 5H8
C5H9
C5H10
C5H11
C5H12
Correct answer is E
No explanation has been provided for this answer.
What does X represent in the following equation? H 2(g) + 1/2O2(g) → H2O (l); ∆H = xKJ.
Bond energy
Activation energy
Ionization energy
Enthalpy of neutralization
Enthalpy of formation
Correct answer is E
No explanation has been provided for this answer.
cooling the reaction mixture
using zinc powder instead of zinc granules
using zinc rod instead of zinc granules
carrying out the reaction at a higher pressure
carrying out the reaction in a closed vessel
Correct answer is B
No explanation has been provided for this answer.
Which of the following is not correct about a catalyst? It
remains unchanged chemically at the end of a reaction
helps to establish equilibrium faster reversible reaction
can start a chemical rection which will normally not take place
is usually specific in its action
alters the rate of chemical reaction
Correct answer is C
No explanation has been provided for this answer.