Functional Groups and Nomenclature - Competitive Exam Level
Q. What is the IUPAC name for the compound CH3-CH2-CH(CH3)-C(=O)OH?
-
A.
3-Methylbutanoic acid
-
B.
2-Methylbutanoic acid
-
C.
4-Methylbutanoic acid
-
D.
Pentanoic acid
Solution
The longest chain has four carbons with a carboxylic acid group, making it 2-Methylbutanoic acid.
Correct Answer: B — 2-Methylbutanoic acid
Learn More →
Q. What is the IUPAC name for the compound with the formula C4H8O2 that has a double bond and a carboxylic acid group?
-
A.
Butenoic acid
-
B.
Butanoic acid
-
C.
2-Butenoic acid
-
D.
3-Butenoic acid
Solution
The compound has a double bond and a carboxylic acid group, making it Butenoic acid.
Correct Answer: A — Butenoic acid
Learn More →
Q. What is the IUPAC name for the compound with the structure CH3-CH2-CH2-CO-NH2?
-
A.
Butanamide
-
B.
Butanoic acid
-
C.
Propionamide
-
D.
Pentanoic acid
Solution
The compound has a four-carbon chain with an amide functional group, making it Butanamide.
Correct Answer: A — Butanamide
Learn More →
Q. Which of the following compounds contains a phenyl group?
-
A.
C6H5-CH3
-
B.
C6H5-COOH
-
C.
C6H5-NH2
-
D.
All of the above
Solution
All the given compounds contain a phenyl group (C6H5) as part of their structure.
Correct Answer: D — All of the above
Learn More →
Q. Which of the following is the functional group of amines?
-
A.
-OH
-
B.
-NH2
-
C.
-COOH
-
D.
-C=O
Solution
Amines contain the amino group (-NH2) as their functional group.
Correct Answer: B — -NH2
Learn More →
Showing 1 to 5 of 5 (1 Pages)
