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.
Why is tetraoxosulphate(VI) acid NOT used for making carbon dioxide from calcium carbonate? It is
a dehydrating agent
a strong acid
an oxidising agent
dibasic
forms insoluble calcium tetraoxosulphate(Vl)
Correct answer is E
No explanation has been provided for this answer.
Which hydrocarbon does NOT exhibit structural isomerism?
C3H6
C4H6
C4H8
C4H10
C5H12
Correct answer is A
Alkenes that show structural isomerism are those with 4 carbons and above.
What is formed when starch is completely hydrolysed?
fructose
glucose
lactose
maltose
sucrose
Correct answer is B
No explanation has been provided for this answer.
CH4
C2H6
C3H6
C3H8
C6H6
Correct answer is C
No explanation has been provided for this answer.
Which method is used for the purification of copper from its ore?
distillation
electrochemical
electrolysis
neutralization
reduction
Correct answer is C
No explanation has been provided for this answer.