MolSynapsequestion bank

MolSynapse / Question bank / IUPAC Nomenclature and Structural Isomerism / Counting structural isomers

JEE Main levelSingle correct optionDifficulty 2 of 3nm183

Ethers of formula $C X_{5} H X_{12} O$ (open-chain, structural isomers) number

A6
B4
C5
D8

Answer: A

Combine alkyl groups with R + R' = 5 carbons: CH3 with butyl (4 butyl groups), and ethyl with propyl (2 propyl groups). Total 4 + 2 = 6.

Practice IUPAC Nomenclature and Structural Isomerism More on Counting structural isomers

Previous questionNext question

More questions on Counting structural isomers

The number of dichloro derivatives (structural isomers) of neopentane, 2,2-dimethylpropane, is JEE Main level
Trichlorobenzene, C6H3Cl3, exists as how many structural isomers? JEE Main level
The number of aromatic (benzene ring containing) structural isomers of C7H8O is JEE Main level
How many secondary alcohols are there among the open-chain saturated alcohols of molecular formula C5H12O? JEE Main level
Tertiary alcohols of formula C6H14O (structural isomers, open chain) number JEE Main level
How many open-chain alkenes (structural isomers only) are there with the formula C5H10? JEE Main level