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 number of electrons presents in H+ is
zero
one
two
three
Correct answer is A
H+ is a hydrogen ion, and it is an ion because it LOST an electron. Electrons are negatively charged. When an atom gains electrons it will have NEGATIVE charges.
So it has zero electron.
an addition reaction
a condensation reaction
an oxidation reaction
an elimination reaction
Correct answer is B
No explanation has been provided for this answer.
The most important ore of aluminium is
bauxite
magnetite
haematite
monazite
Correct answer is A
No explanation has been provided for this answer.
coke
graphite
diamond
charcoal
Correct answer is C
No explanation has been provided for this answer.
The maximum number of isomers for an alkene with molecular formula C4H8 is
5
4
2
3
Correct answer is B
No explanation has been provided for this answer.