Which of the following gases is absorbed from the air dun photosynthesis?
Carbon (II) oxide
Carbon (IV) oxide
Nitrogen
Noble gases
Oxygen
Correct answer is B
No explanation has been provided for this answer.
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.