Question detail

Which of the following is the molecular formula for butane?

Try the question, check the answer, then read the explanation to understand the curriculum point.

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At a glance

MCQ

Type

practice

Style

Topic

Carbon compounds as fuels and feedstock

Question

A. C4H10
B. C3H8
C. C5H12
D. C2H6

Answer

C4H10

Explanation

Butane has four carbon atoms and ten hydrogen atoms, represented by the molecular formula C4H10.

Common mistake

Identifying Alkanes

Students often confuse alkanes with alkenes when looking at their formulae, mistakenly identifying alkenes as alkanes due to the presence of carbon and hydrogen.

To correctly identify alkanes, remember that they have the general formula CnH2n+2 and do not contain any double bonds, while alkenes have the general formula CnH2n and contain at least one double bond.

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