Question
Which of the following statements about alkanes is true?(A) Alkanes are unsaturated hydrocarbons.(B) Alkanes have a general formula of CₙH₂ₙ.(C) Alkanes contain only single bonds between carbon atoms.(D) Alkanes are more reactive than alkenes.
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Evidence boundary
This page uses the four-option version with unsaturation, CₙH₂ₙ, single carbon–carbon bonds, and relative alkene reactivity. The formula comparison treats alkanes as acyclic; monocyclic saturated hydrocarbons are cycloalkanes. Reactivity depends on the reaction and conditions, so the introductory comparison is not a universal ranking for every chemical process.