What is the general formula of alkenes?
A. CnH2n
B. CnH2n + 2
C. CnH2n - 2
D. CnH2n - 1
Answer: Option A
A. CnH2n
B. CnH2n + 2
C. CnH2n - 2
D. CnH2n - 1
Answer: Option A
Traditional 'battery' contains which of the following chemicals?
A. Ethylene glycol
B. Sulphuric acid
C. Sodium bicarbonate
D. Ethanol
Join The Discussion