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Nomenclature of bicyclic, spiro and aromatic compounds

28 questions on Nomenclature of bicyclic, spiro and aromatic compounds from the IUPAC Nomenclature and Structural Isomerism chapter: 5 NEET level, 12 JEE Main, 11 JEE Advanced. Each one opens with its answer and solution.

Practice this topic All IUPAC Nomenclature and Structural Isomerism topics

How many carbon atoms are present in bicyclo[2.2.1]heptane? NEET level
The group C6H5-CH2-, when present as a substituent, is named NEET level
Two chlorine atoms on a benzene ring are in the meta relationship. Their locants in the IUPAC name are NEET level
The total number of carbon atoms in spiro[4.5]decane is NEET level
A benzene ring carries a -COOH group at C-1 and a -CH3 group para to it. The IUPAC name is NEET level
Which is the correct IUPAC name of the bicyclo[2.2.1]heptane that carries one methyl group on a bridgehead carbon and two methyl groups on the one-carbon bridge... JEE Main level
In bicyclo[3.2.1]octane, the bridgehead carbons and the one-carbon bridge are numbered respectively JEE Main level
In spiro[3.4]octane the spiro atom bears the locant JEE Main level
A cyclopropane ring and a cyclopentane ring share one carbon atom, and a methyl group is on a cyclopropane carbon next to the shared atom. The name is JEE Main level
A benzene ring bears an -OH group (C-1), a methyl group ortho to it and a chlorine atom para to it. The IUPAC name is JEE Main level
The compound OHC-C6H4-OH (groups para) is correctly named JEE Main level
In naphthalene, the alpha positions and the compound beta-naphthol are respectively JEE Main level
The molecular formula of bicyclo[4.4.0]decane is JEE Main level
How many carbon atoms are in 6,6-dimethylspiro[3.5]nonane? JEE Main level
Select the correct statements about bicyclo[3.2.1]octane. JEE Main level
Each name below describes a specific compound. Select the names that are written correctly (lowest locants, alphabetical order, correct principal group). JEE Main level
Using DU = (2C + 2 + N - H - X)/2, find the degree of unsaturation of 1-nitronaphthalene, C10H7NO2. Give the answer as an integer. JEE Main level
What is the molecular formula of 7,7-dimethylbicyclo[2.2.1]hept-2-ene? JEE Advanced level
A cyclohexane ring and a cyclopropane ring share one C-C bond. The cyclopropane carbon that is not shared carries a methyl group. The name is JEE Advanced level
Select the correct statements about spiro[4.5]dec-6-ene. JEE Advanced level
A cyclobutane ring and a cyclohexane ring share one carbon. An -OH group is on the cyclobutane carbon adjacent to the shared atom, and a chlorine atom is on the... JEE Advanced level
The compound with a -COOH group and a -CHO group in meta positions on a benzene ring is named JEE Advanced level
A phenol has a methyl group para to the OH group and a nitro group ortho to the OH group. The correct name is JEE Advanced level
CH3-NH-C6H4-NO2 with the two substituents para on the ring is correctly named JEE Advanced level
In naphthalene an amino group occupies an alpha position (C-1) and a methyl group is on the adjacent beta carbon (C-2). Which is the correct name? JEE Advanced level
In the bicyclo[3.2.1]octane skeleton a C=C bond lies in the two-carbon bridge. The correct name is JEE Advanced level
Select the correct statements about monochloro derivatives (constitutional isomers only, no stereoisomers) and formulas. JEE Advanced level
Select the correct names. JEE Advanced level