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.
What is the IUPAC name of CH3CCI=C(CH3)2?
2-chloro -3 methylbut -2yne
2 -chloro -3 methylbut -2ene
2 -chloro -3 methylbutene
3- methyl -2-chlorobut -2-ene
3- methyl -2. chlorobut -2 yne
Correct answer is B
No explanation has been provided for this answer.
Which formula is used to indicate the degree of acidity of an acid?
[H+]=mass of acid relativemolecularmassofacid
F = number of H+ = ions x molar mass of the acid
Kw = [H+][OH-]
pH = - log10[H+]
pKa = -log10Ka
Correct answer is D
No explanation has been provided for this answer.
A calcium atom and a calcium ion have the same
chemical properties
electric charge
electronic structure
number of electrons
number of neutrons
Correct answer is E
No explanation has been provided for this answer.
Which is NOT a synthetic polymer?
nylon
Orion
Perspex
polystyrene
wool
Correct answer is E
No explanation has been provided for this answer.