What is the molecular formula of iso butane?
A. C4H10
B. C4H8
C. C3H8
D. C3H6
Answer: Option A
A. C4H10
B. C4H8
C. C3H8
D. C3H6
Answer: Option A
Traditional 'battery' contains which of the following chemicals?
A. Ethylene glycol
B. Sulphuric acid
C. Sodium bicarbonate
D. Ethanol
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