Chemistry · Fundamental Principles of Organic Chemistry
Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive practice and topic analytics.
If a double bond is present between two carbons then this class of compounds in called as ____.
- A
Alkanes
- B
Alkynes
- C
Carbonyl
- D
Alkenes
Alkenes are the correct answer because they specifically contain carbon-carbon double bonds, distinguishing them from alkanes, alkynes, and carbonyl compounds. Alkanes have only single bonds, alkynes have triple bonds, and carbonyl compounds have carbon-oxygen double bonds.
Alkanes are saturated compounds and have single bonds between carbons.
Example: methane
Alkynes are a homologous series of hydrocarbons containing triple bonds between carbon atoms.
Example: ethyne
In a carbonyl group, a double bond is present between carbon and oxygen.
Alkenes are a homologous series of hydrocarbons containing one or more double bonds between carbon atoms.
Tagged under Chemistry · Fundamental Principles of Organic Chemistry · 2021