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Multiple Choice
Which of the following statements is true regarding the structure of alkanes in organic chemistry?
A
Alkanes are hydrocarbons with only single bonds between carbon atoms.
B
Alkanes are hydrocarbons with alternating single and double bonds.
C
Alkanes are aromatic compounds with a benzene ring.
D
Alkanes contain at least one double bond between carbon atoms.
Verified step by step guidance
1
Identify the definition of alkanes: Alkanes are a class of hydrocarbons that consist entirely of single bonds between carbon atoms and are saturated with hydrogen atoms.
Understand the structure of alkanes: Alkanes have a general formula of CnH2n+2, where 'n' is the number of carbon atoms. This formula indicates that all carbon-carbon bonds are single bonds.
Differentiate alkanes from other hydrocarbons: Unlike alkenes and alkynes, which contain double and triple bonds respectively, alkanes only have single bonds.
Clarify the misconception about aromatic compounds: Aromatic compounds, such as benzene, have a distinct ring structure with alternating single and double bonds, which is not a characteristic of alkanes.
Conclude by identifying the correct statement: Based on the definitions and characteristics, the true statement is that alkanes are hydrocarbons with only single bonds between carbon atoms.