2
3
4
5
6
Correct answer is E
No explanation has been provided for this answer.
All the following belong to the same family EXCEPT
glycerol
nylon
perspex polyethene
polyethene
polystyrene
Correct answer is A
No explanation has been provided for this answer.
Ptotal = P1 + P2 + P3 +…………. Pn, is an expression of law
Boyle’s
Charles’
Dalton’s
Graham’s
Gay Lussac’s
Correct answer is C
No explanation has been provided for this answer.
The following are ores of metals EXCEPT
bauxite
dolomite
graphite
haematite
magnetite
Correct answer is C
So Dolomite is a magnesium ore, haematite, and magnetite is an iron ore, Bauxite is an aluminum ore while graphite is not a metal ore but a crystalline allotrope form of carbon.
The green house effect is a climatic condition associated with the presence of excess
carbon (II) oxide
carbon (IV) oxide
hydrogen sulphide
nitrogen (II) oxide
oxygen
Correct answer is B
No explanation has been provided for this answer.