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 compounds has hydrogen bonds between its molecules?
HF
HBr
HCI
HI
Correct answer is A
No explanation has been provided for this answer.
covalent
dative
ionic
metallic
Correct answer is C
No explanation has been provided for this answer.
Which of the following statements about sodium is not true?
Na+ is smaller in size than Na
Na is smaller in size than Na+
Na+ has fewer electrons than Na
The effective nuclear charge in Na+ is greater than in Na
Correct answer is B
No explanation has been provided for this answer.
Which of the following properties of atoms generally increases down a group in the periodic table?
Electron affinity
Electronegativity
Ionic radius
lonization energy
Correct answer is C
No explanation has been provided for this answer.
A transition metal would be expected to
from oxides with different formulae
have strong oxidizing ability
have low density
have an atomic structure with an incomplete outermost shell
Correct answer is A
No explanation has been provided for this answer.