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.
Bubbling excess carbon (IV) oxide into calcium hydroxide solution results in the formaton of
CaO
Ca(HCO3)2
H2CO3
CaCO3
Correct answer is B
No explanation has been provided for this answer.
A gas that is collected by upward delivery is likely to be
heavier than air
insoluble in water
lighter than air
soluble in water
Correct answer is C
No explanation has been provided for this answer.
Which of the following statements about a molar solution is correct? it
is a supersaturated solution
cannot dissolve more of the solute at that temperature
contains any amount of solute in a given volume of solution
contains one mole of the solute in 1 dm3 of solution
Correct answer is D
No explanation has been provided for this answer.
The number of atoms in one mole of a substance is equal to the
mass number
oxidation number
atomic number
avogadro number
Correct answer is D
No explanation has been provided for this answer.
0.5 moles
2.0 moles
12.0 moles
24.0 moles
Correct answer is B
No explanation has been provided for this answer.