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.
In the extraction of iron, the waste gas from the furnace is a mixture of
PH3 CO and CO2
CO and C
N2 , CO and CO2
PH3 and CO
Correct answer is C
the N2 from the hot air blast to burn the coke (48%), the CO (23%) and CO2 (21%) produced from the reduction of the iron ore Fe2O3 by carbon (the coke) are the major components of the waste from the extraction.
The drying agent suitable for drying ammonia is
Calcium Chloride
Calcium Oxide
Phosphorus(V) Oxide
Concentrated H2SO4
Correct answer is B
No explanation has been provided for this answer.
3
2
4
5
Correct answer is C
No explanation has been provided for this answer.
Ethanol is soluble in water due to the presence of a
Carbonyl group
Hydroxyl group
Phenyl group
Methyl group
Correct answer is B
No explanation has been provided for this answer.