Which of the following is an example of a hydrocarbon?
A. chlorofluorocarbons
B. acetic acid
C. carbon dioxide
D. methane
Answer: Option D
A. chlorofluorocarbons
B. acetic acid
C. carbon dioxide
D. methane
Answer: Option D
Traditional 'battery' contains which of the following chemicals?
A. Ethylene glycol
B. Sulphuric acid
C. Sodium bicarbonate
D. Ethanol
Join The Discussion