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.
The region around the nucleus where electrons can be located is called?
a spectra
an orbital
a quanta
a field
Correct answer is B
No explanation has been provided for this answer.
CI\(^{-}\)
O\(^{2-}\)
Mg\(^{2+}\)
AI\(^{3+}\)
Correct answer is A
No explanation has been provided for this answer.
63.0
63.6
65.0
69.0
Correct answer is B
No explanation has been provided for this answer.
Potassium trioxonitrate (V) can be obtained from its solution by----------
distillation
evapoartion
crystallization
filtration
Correct answer is C
No explanation has been provided for this answer.
Which of the following statements is correct about ionization energy? It
decreases across the periods
results in the formation of an anion
causes Metalic nuclei to disintegrate
decreases down the group
Correct answer is D
No explanation has been provided for this answer.