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.
For iron to rust, there should be present?
oxygen
moisture
carbondioxide
oxygen and moisture
oxygen, moisture and carbondioxide
Correct answer is D
No explanation has been provided for this answer.
Methane is member of the homologous series called?
alkenes
alcohols
esters
alkanes
alkynes
Correct answer is D
No explanation has been provided for this answer.
The oxidation number of manganese in KMnO4 is?
+1
+3
+5
+7
+2
Correct answer is D
No explanation has been provided for this answer.
An example of a strong electrolyte is?
ethyl acetate
ethanol
glucose
sodium formate
formic acid
Correct answer is D
No explanation has been provided for this answer.
methane
hydrogen chloride
hydrogen
nitrogen
Correct answer is E
Co2 does not support combustion, it is used in fire extinguishers and when it is passed into a solution of barium hydroxide, a white precipitate of barium carbonate is formed