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 textile industry
in the hydrogenation of oils
as domestic and industrial fuels
as fine chemicals
Correct answer is C
Alkanes are very useful as fuels.
2-methylprop-1-ene is a structural isomer of?
But-1-yne
2-methyl But-1-ene
3-methyl prop-1-yne
But-2-ene
Correct answer is D
Isomers of Butene: are But-1-ene, But-2-ene, 2-Methylpropene or 2-methylprop-1-ene
How many bonding pair are present in carbon(iv)oxide?
4
3
2
1
Correct answer is A
There are 4 bond pairs in CO₂ and no lone pairs are there.
In the extraction of iron, hot air is introduced into the blast furnace through?
valves
open-hearths
arcs
tuyeres
Correct answer is D
Pre-heated air at about 600ºC is blown into the furnaces from the bottom through the tuyeres.
Wrought iron is obtained by heating cast iron in a furnace with?
magnetite
haematite
carbon(ii)oxide
calcium trioxosilicate(iv)
Correct answer is B
Cast iron + haematite = wrought iron