IUPAC Nomenclature – 15 NEET Chemistry MCQs (With Answers & Explanation)
Master IUPAC naming with these hand-picked NEET-level questions. For detailed rules and full guide, visit our post: 👉 IUPAC Rules and Nomenclature – Full Guide
Q1: What is the IUPAC name of CH₃–CH=CH–CH₃?
✅ Answer: C) But-2-ene
Explanation: It's a four-carbon alkene with the double bond starting at position 2.
Explanation: It's a four-carbon alkene with the double bond starting at position 2.
Q2: What is the IUPAC name of CH₃–CH₂–OH?
✅ Answer: A) Ethanol
Explanation: It's a two-carbon alcohol; “-ol” is the suffix for alcohol.
Explanation: It's a two-carbon alcohol; “-ol” is the suffix for alcohol.
Q3: IUPAC name of CH₃–CO–CH₃ is:
✅ Answer: B) Propanone
Explanation: It's a ketone with 3 carbon atoms; the suffix “-one” is used.
Explanation: It's a ketone with 3 carbon atoms; the suffix “-one” is used.
Q4: CH₃–CH₂–COOH is called:
✅ Answer: B) Propanoic acid
Explanation: 3 carbon atoms with a carboxylic acid group.
Explanation: 3 carbon atoms with a carboxylic acid group.
Q5: IUPAC name of CH₃–CH₂–NH₂ is:
✅ Answer: B) Ethylamine
Explanation: Two carbon atoms + amine group = ethylamine.
Explanation: Two carbon atoms + amine group = ethylamine.
Q6: What is the IUPAC name of CH₃–O–CH₂CH₃?
✅ Answer: B) Methoxy ethane
Explanation: It’s an ether with methoxy group on ethane.
Explanation: It’s an ether with methoxy group on ethane.
NEET Chemistry: 15 IUPAC Nomenclature MCQs with Answers
Strengthen your command over IUPAC rules with these important NEET MCQs. Want the full theory? Check out 👉 IUPAC Rules and Nomenclature – Full Guide
Q7: IUPAC name of CH3–CH2–CH2–CHO is:
✅ Answer: B) Butanal
Explanation: It is a four-carbon aldehyde, so named Butanal.
Explanation: It is a four-carbon aldehyde, so named Butanal.
Q8: What is the IUPAC name of CH3–CHCl–CH3?
✅ Answer: B) 2-Chloropropane
Explanation: The chlorine is on the 2nd carbon of propane chain.
Explanation: The chlorine is on the 2nd carbon of propane chain.
Q9: IUPAC name of benzene with –NO2 group is:
✅ Answer: A) Nitrobenzene
Explanation: –NO2 is nitro group; attached to benzene gives Nitrobenzene.
Explanation: –NO2 is nitro group; attached to benzene gives Nitrobenzene.
Q10: The IUPAC name of CH3–CH(CH3)–CH2–OH is:
✅ Answer: B) 2-Methylpropan-1-ol
Explanation: 3 carbon chain with OH on C1 and methyl on C2.
Explanation: 3 carbon chain with OH on C1 and methyl on C2.
Q11: IUPAC name of CH≡C–CH2–CH3 is:
✅ Answer: C) But-1-yne
Explanation: Alkyne with triple bond starting at first carbon.
Explanation: Alkyne with triple bond starting at first carbon.
Q12: What is the IUPAC name of CH3–CH=CH–Cl?
✅ Answer: C) 2-Chloroprop-1-ene
Explanation: Double bond at C1, chlorine at C2 in propane chain.
Explanation: Double bond at C1, chlorine at C2 in propane chain.
Q13: What is the IUPAC name of (CH3)3C–OH?
✅ Answer: A) 2-Methylpropan-2-ol
Explanation: Tertiary alcohol with methyl branches on propane base.
Explanation: Tertiary alcohol with methyl branches on propane base.
Q14: The IUPAC name of C6H5–CH3 is:
✅ Answer: C) Toluene
Explanation: Methyl group on benzene = Toluene.
Explanation: Methyl group on benzene = Toluene.
Q15: What is the correct IUPAC name of CH3–CH(NH2)–COOH?
✅ Answer: C) 2-Aminopropanoic acid
Explanation: COOH on C1, NH2 on C2 of propane chain.
Explanation: COOH on C1, NH2 on C2 of propane chain.
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