The gas emerged through the cigarette lighter is
A. butane
B. methane
C. propane
D. radon
Answer: Option B
A. butane
B. methane
C. propane
D. radon
Answer: Option B
Traditional 'battery' contains which of the following chemicals?
A. Ethylene glycol
B. Sulphuric acid
C. Sodium bicarbonate
D. Ethanol
Butane is correct