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