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.
Wine containing 8% to 17% ethanol can be converted to gin containing about 40% ethanol by
evaporation
distilation
fermentation
oxidation
Correct answer is B
No explanation has been provided for this answer.
Which of the following compounds has the same empirical formula as benzene?
C2H2
C2H4
C4H6
C6H12
Correct answer is A
No explanation has been provided for this answer.
2CI- (aq) → CI,sub>2(g) + 2e-
40H-(aq) → 2H2O(I) + O2(g) + 4e -
Na+(aq) + e- → Na(s)
2H+(aq) + 2e- → H2(g)
Correct answer is A
No explanation has been provided for this answer.
A given fuel has an octane number of 100. This means that
the knocking tendency of the fuel is low
the fuel is a mixture of several hydrocarbons
a large amount of alkanes is present in the fuel
the fuel needs to be cracked before use
Correct answer is A
No explanation has been provided for this answer.
0.10 mole
0.20 mole
1.0 mole
2.0 mole
Correct answer is B
No explanation has been provided for this answer.