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Multiple Choice
Which of the following statements about alkanes is true?
A
Alkanes are aromatic compounds.
B
Alkanes contain at least one double bond.
C
Alkanes are unsaturated hydrocarbons.
D
Alkanes are hydrocarbons that contain only single bonds.
Verified step by step guidance
1
Begin by understanding the basic definition of alkanes. Alkanes are a class of hydrocarbons, which means they are composed entirely of carbon and hydrogen atoms.
Recognize that alkanes are saturated hydrocarbons. This means they contain only single bonds between carbon atoms, and each carbon atom is bonded to as many hydrogen atoms as possible.
Differentiate alkanes from other types of hydrocarbons. Aromatic compounds contain a ring structure with alternating double bonds, while unsaturated hydrocarbons contain double or triple bonds. Alkanes do not have these features.
Review the structural formula of alkanes. The general formula for alkanes is CnH2n+2, where 'n' is the number of carbon atoms. This formula reflects the saturation of hydrogen atoms.
Conclude that the statement 'Alkanes are hydrocarbons that contain only single bonds' is true, as it accurately describes the saturated nature of alkanes.