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.
The major component of the slag from the production of iron is?
an alloy of calcium and iron
coke
impure iron
calcium trioxosilicate (IV)
Correct answer is D
Blast furnace slag is a nonmetallic coproduct produced in the process. It consists primarily of silicates, aluminosilicates, and calcium-alumina-silicates
Coal fire should not be used in poorly ventilated rooms because ?
of the accumulation of CO2 which causes dep sleep
it is usually too hot
of the acumulation of CO which causes suffocation
it removes most most of the gases in the rooms
Correct answer is C
No explanation has been provided for this answer.
Which of the following metals will liberate hydrogen from steam or dilute acid?
Copper
Iron
Lead
Mercury
Correct answer is B
No explanation has been provided for this answer.
an acidic oxide
a basic oxide
a neutral oxide
an amphoteric oxide
Correct answer is D
No explanation has been provided for this answer.
In the Haber process for the manufacture of ammonia, the catalyst commonly used is finely divided ?
vanadium
platinum
iron
copper
Correct answer is C
No explanation has been provided for this answer.