Q. Which of the following is NOT a function of lipids?
A.
Energy storage
B.
Insulation
C.
Hormone production
D.
Genetic information storage
Show solution
Solution
Lipids do not store genetic information; that function is performed by nucleic acids.
Correct Answer: D — Genetic information storage
Learn More →
Q. Which of the following is NOT a function of proteins?
A.
Enzymatic activity
B.
Energy storage
C.
Transport of molecules
D.
Cell signaling
Show solution
Solution
While proteins can be involved in energy metabolism, they are not primarily used for energy storage; carbohydrates and fats serve that purpose.
Correct Answer: B — Energy storage
Learn More →
Q. Which of the following is NOT a property of elastomers?
A.
High elasticity
B.
Low tensile strength
C.
Good thermal stability
D.
Ability to return to original shape
Show solution
Solution
Elastomers typically do not have good thermal stability; they are more flexible and can return to their original shape after deformation.
Correct Answer: C — Good thermal stability
Learn More →
Q. Which of the following is NOT a property of polymers?
A.
High strength
B.
Low density
C.
Brittleness
D.
Corrosion resistance
Show solution
Solution
Brittleness is generally not a property of polymers; they are usually more flexible.
Correct Answer: C — Brittleness
Learn More →
Q. Which of the following is NOT a type of isomerism?
A.
Geometric isomerism
B.
Optical isomerism
C.
Hydrogen isomerism
D.
Structural isomerism
Show solution
Solution
Hydrogen isomerism is not a recognized type of isomerism in chemistry.
Correct Answer: C — Hydrogen isomerism
Learn More →
Q. Which of the following is NOT an aromatic compound?
A.
Naphthalene
B.
Benzene
C.
Cyclooctatetraene
D.
Anthracene
Show solution
Solution
Cyclooctatetraene is not aromatic because it does not satisfy Huckel's rule; it is non-planar and does not have a continuous overlap of p-orbitals.
Correct Answer: C — Cyclooctatetraene
Learn More →
Q. Which of the following is the correct formula for ethyne?
A.
C2H2
B.
C2H4
C.
C2H6
D.
C2H8
Show solution
Solution
Ethyne, also known as acetylene, has the formula C2H2, which indicates it is an alkyne.
Correct Answer: A — C2H2
Learn More →
Q. Which of the following is the correct IUPAC name for C2H5-CO-CH3?
A.
2-Pentanone
B.
3-Pentanone
C.
Butan-2-one
D.
Butan-3-one
Show solution
Solution
The compound is a ketone with a four-carbon chain, and the carbonyl group is on the second carbon, hence it is Butan-2-one.
Correct Answer: C — Butan-2-one
Learn More →
Q. Which of the following is the correct IUPAC name for C3H6?
A.
Propene
B.
Cyclopropane
C.
Propane
D.
1-Propyn
Show solution
Solution
C3H6 corresponds to propene, which is an alkene with a double bond.
Correct Answer: A — Propene
Learn More →
Q. Which of the following is the correct IUPAC name for C3H7-COOH?
A.
Propanoic acid
B.
Butanoic acid
C.
Pentanoic acid
D.
Hexanoic acid
Show solution
Solution
The compound has 3 carbons in the longest chain and a carboxylic acid group, hence it is Propanoic acid.
Correct Answer: A — Propanoic acid
Learn More →
Q. Which of the following is the correct IUPAC name for C5H10?
A.
Pentane
B.
Cyclopentane
C.
1-Pentene
D.
2-Pentene
Show solution
Solution
C5H10 corresponds to pentane, which is a straight-chain alkane with 5 carbon atoms.
Correct Answer: A — Pentane
Learn More →
Q. Which of the following is the correct IUPAC name for C6H12?
A.
Hexane
B.
Cyclohexane
C.
2-Hexene
D.
1-Hexyne
Show solution
Solution
C6H12 is a straight-chain alkane with 6 carbons, which is named Hexane.
Correct Answer: A — Hexane
Learn More →
Q. Which of the following is the correct IUPAC name for C6H5-CH2-CH2-COOH?
A.
Phenylbutanoic acid
B.
Butylbenzoic acid
C.
Benzoic acid
D.
Phenylpropanoic acid
Show solution
Solution
The compound has a phenyl group attached to a butanoic acid structure, making it Phenylbutanoic acid.
Correct Answer: A — Phenylbutanoic acid
Learn More →
Q. Which of the following is the correct IUPAC name for C6H5-CH2-CH3?
A.
Ethylbenzene
B.
Phenylpropane
C.
Benzyl ethane
D.
Benzene ethyl
Show solution
Solution
The compound has a phenyl group attached to an ethyl group, making it Ethylbenzene.
Correct Answer: A — Ethylbenzene
Learn More →
Q. Which of the following is the correct IUPAC name for CH3-CH2-CH(CH3)-CH2-CH3?
A.
2-Pentene
B.
3-Pentene
C.
2-Methylbutane
D.
3-Methylbutane
Show solution
Solution
The longest carbon chain has 5 carbons, and there is a methyl group on the second carbon, making it 2-Methylbutane.
Correct Answer: C — 2-Methylbutane
Learn More →
Q. Which of the following is the correct IUPAC name for CH3-CH2-CH(CH3)-OH?
A.
2-Methylpropan-1-ol
B.
3-Methylbutan-1-ol
C.
2-Methylbutan-1-ol
D.
3-Methylpropan-1-ol
Show solution
Solution
The longest chain has four carbons, and the hydroxyl group is on the first carbon, with a methyl group on the second carbon, making it 2-Methylbutan-1-ol.
Correct Answer: C — 2-Methylbutan-1-ol
Learn More →
Q. Which of the following is the correct IUPAC name for CH3CH2CH2OH?
A.
Propan-1-ol
B.
Butan-1-ol
C.
Butan-2-ol
D.
Pentan-1-ol
Show solution
Solution
The correct IUPAC name for CH3CH2CH2OH is Butan-1-ol, as it has four carbon atoms with the hydroxyl group on the first carbon.
Correct Answer: B — Butan-1-ol
Learn More →
Q. Which of the following is the correct IUPAC name for CH3CHO?
A.
Ethanal
B.
Propanal
C.
Butanal
D.
Methanal
Show solution
Solution
The correct IUPAC name for CH3CHO is Ethanal.
Correct Answer: A — Ethanal
Learn More →
Q. Which of the following is the correct IUPAC name for CH3COOH?
A.
Methanoic acid
B.
Ethanoic acid
C.
Propanoic acid
D.
Butanoic acid
Show solution
Solution
The compound CH3COOH is known as Ethanoic acid, which is the IUPAC name for acetic acid.
Correct Answer: B — Ethanoic acid
Learn More →
Q. Which of the following is the correct IUPAC name for the compound C2H5-CHO?
A.
Ethanal
B.
Propanoic acid
C.
Acetaldehyde
D.
Ethyl aldehyde
Show solution
Solution
The compound is an aldehyde with two carbons, hence the IUPAC name is Ethanal.
Correct Answer: A — Ethanal
Learn More →
Q. Which of the following is the correct IUPAC name for the compound C3H6O?
A.
Propylene oxide
B.
Acetone
C.
Propanal
D.
Cyclopropanol
Show solution
Solution
C3H6O can be identified as Propanal, which is an aldehyde with three carbons.
Correct Answer: C — Propanal
Learn More →
Q. Which of the following is the correct IUPAC name for the compound CH3-CH(CH3)-C(CH3)2-COOH?
A.
2-Hydroxy-3-methylpentanoic acid
B.
3-Methyl-2-pentanoic acid
C.
2-Methyl-3-pentanoic acid
D.
3-Hydroxy-2-methylpentanoic acid
Show solution
Solution
The longest chain has 5 carbons, with a methyl group on the second carbon and a carboxylic acid on the first, making it 3-Methyl-2-pentanoic acid.
Correct Answer: B — 3-Methyl-2-pentanoic acid
Learn More →
Q. Which of the following is the correct IUPAC name for the compound CH3-CH2-CH(CH3)-C≡C-H?
A.
3-Methyl-1-pentyne
B.
2-Methyl-1-pentyne
C.
1-Methyl-2-pentyne
D.
1-Methyl-3-pentyne
Show solution
Solution
The compound has a triple bond and the longest chain has five carbons, making it 3-Methyl-1-pentyne.
Correct Answer: A — 3-Methyl-1-pentyne
Learn More →
Q. Which of the following is the correct IUPAC name for the compound CH3-CH2-CH(CH3)-OH?
A.
2-Propanol
B.
1-Butanol
C.
2-Butanol
D.
3-Butanol
Show solution
Solution
The compound has a hydroxyl group on the second carbon of a four-carbon chain, making it 2-Butanol.
Correct Answer: C — 2-Butanol
Learn More →
Q. Which of the following is the correct IUPAC name for the compound CH3-CH2-CH2-CH2-COOH?
A.
Pentanoic acid
B.
Butanoic acid
C.
Hexanoic acid
D.
Heptanoic acid
Show solution
Solution
The compound is a carboxylic acid with 5 carbons, named Pentanoic acid.
Correct Answer: A — Pentanoic acid
Learn More →
Q. Which of the following is the correct IUPAC name for the compound CH3-CH2-CH2-CHO?
A.
Butanal
B.
Propionaldehyde
C.
Pentanal
D.
Ethanal
Show solution
Solution
The compound has a four-carbon chain with an aldehyde functional group, so it is named Butanal.
Correct Answer: A — Butanal
Learn More →
Q. Which of the following is the correct IUPAC name for the compound with the formula C6H5-CH2-CHO?
A.
Benzaldehyde
B.
Benzylaldehyde
C.
Phenylacetaldehyde
D.
Phenylaldehyde
Show solution
Solution
The compound has a benzyl group attached to an aldehyde, making it Benzylaldehyde.
Correct Answer: B — Benzylaldehyde
Learn More →
Q. Which of the following is the correct IUPAC name for the compound with the formula C3H7-COOH?
A.
Propanoic acid
B.
Butanoic acid
C.
Acetic acid
D.
Isobutyric acid
Show solution
Solution
The compound has three carbons in the longest chain and a carboxylic acid functional group, making it Propanoic acid.
Correct Answer: A — Propanoic acid
Learn More →
Q. Which of the following is the correct IUPAC name for the compound with the formula C6H5-CH2-CH2-COOH?
A.
Phenylbutanoic acid
B.
Butylphenyl acid
C.
Benzoic acid
D.
Phenylpropanoic acid
Show solution
Solution
The compound has a phenyl group attached to a butanoic acid, making it Phenylbutanoic acid.
Correct Answer: A — Phenylbutanoic acid
Learn More →
Q. Which of the following is the correct IUPAC name for the compound with the formula C5H10?
A.
Pentene
B.
Cyclopentane
C.
Pentane
D.
2-Pentene
Show solution
Solution
The compound is a straight-chain alkane with five carbons, hence the name is Pentane.
Correct Answer: C — Pentane
Learn More →
Showing 751 to 780 of 951 (32 Pages)