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 gases is employed as an anaesthesia?
N 2O
NO2
NH3
NO
Correct answer is A
No explanation has been provided for this answer.
In the laboratory preparation of ammonia, the flask is placed in a slanting position so as to
prevent condensed water from breaking the reaction flask
enable the proper mixing of the reactions in the flask
enhance the speed of the reaction
prevent formation of precipitate
Correct answer is A
No explanation has been provided for this answer.
Which of the following compounds is a neutral oxide?
Carbon (IV) oxide
Sulphur (Vl) oixide
Sulphur (IV) oxide
Carbon (ll) oxide
Correct answer is D
No explanation has been provided for this answer.
The minimum amount of energy required for a reaction to take place is
lattice energy
ionization energy
activation energy
kinetic energy
Correct answer is C
No explanation has been provided for this answer.
In an endothermic reaction, if there is a loss in entropy the reaction will
be indeterminate
be spontaneous
not be spontaneous
be at equilibrium
Correct answer is C
No explanation has been provided for this answer.