What is the chemical formula for butane?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. C4H10.
The chemical formula for butane is C4H10. Butane is a hydrocarbon belonging to the alkane group, which means it consists of only carbon and hydrogen atoms, with single bonds between them. It is a colourless, flammable gas at room temperature and is commonly used as a fuel in lighters and portable stoves. Butane exists in two isomeric forms: n-butane (a straight chain) and isobutane (a branched chain), both sharing the same molecular formula, C4H10.