30 Organic Chemistry questions with answers, ranging from basic to intermediate difficulty, covering structure, reactions, mechanisms, and functional groups.

30 Organic Chemistry questions with answers, ranging from basic to
intermediate difficulty, covering structure, reactions, mechanisms, and
functional groups.



Basic Concepts

1. Q: What is the general formula for alkanes?
A: CₙH₂ₙ₊₂
2. Q: What type of hybridization is found in a carbon-carbon double bond?
A: sp²
3. Q: What is the IUPAC name of CH₃-CH₂-CH₃?
A: Propane
4. Q: What is an isomer?
A: Compounds with the same molecular formula but different structures.
5. Q: Which has a higher boiling point: ethanol or ethane? Why?
A: Ethanol, due to hydrogen bonding.




Functional Groups

6. Q: Name the functional group in aldehydes.
A: –CHO
7. Q: What is the functional group of a carboxylic acid?
A: –COOH
8. Q: What functional group defines a ketone?
A: A carbonyl group (C=O) bonded to two carbon atoms.
9. Q: Identify the functional group in esters.
A: –COO–
10. Q: What is the difference between an alcohol and an ether?
A: Alcohols have an –OH group; ethers have an –O– between two carbon atoms.