Multiple Choice
In the context of ecological succession, lichens and mosses are considered pioneer species. What type of succession do they typically initiate?
1. A Review of General Chemistry
Intro to Organic Chemistry
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Which of the following is the basic structure of an alkane in organic chemistry?
A
A chain of carbon atoms with double bonds
B
A ring of carbon atoms with alternating double bonds
C
A chain of carbon atoms with single bonds
D
A chain of carbon atoms with triple bonds
Verified step by step guidance1
Understand the definition of alkanes: Alkanes are saturated hydrocarbons, meaning they consist entirely of single bonds and are saturated with hydrogen atoms.
Recognize the general formula for alkanes: The formula is CnH2n+2, where 'n' is the number of carbon atoms. This formula indicates that each carbon atom is bonded to enough hydrogen atoms to satisfy the valency of carbon, which is four.
Identify the structure of alkanes: Alkanes have a chain of carbon atoms connected by single bonds. This linear or branched structure is characteristic of alkanes.
Differentiate alkanes from other hydrocarbons: Unlike alkenes and alkynes, which contain double and triple bonds respectively, alkanes only have single bonds between carbon atoms.
Apply this knowledge to the options given: The correct description of an alkane is 'A chain of carbon atoms with single bonds', as this matches the structural characteristics of alkanes.
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