MolSynapsequestion bank

MolSynapse / Question bank / IUPAC Nomenclature and Structural Isomerism / Structural isomerism: chain, position, functional, metamerism

JEE Main levelOne or more correct optionsDifficulty 2 of 3nm136

Which of the following are structural isomers of butanal, $CH X_{3} CH X_{2} CH X_{2} CHO$ ?

A2-methylpropanal
Bbutanoic acid
Cbutan-2-one
Dbut-3-en-1-ol

Answer: A, C, D

Butanal is

C X_{4} H X_{8} O

. Butan-2-one, 2-methylpropanal and but-3-en-1-ol are all

C X_{4} H X_{8} O

, so they are isomers. Butanoic acid is

C X_{4} H X_{8} O X_{2}

, with an extra oxygen, so it is not an isomer.

Practice IUPAC Nomenclature and Structural Isomerism More on Structural isomerism: chain, position, functional, metamerism

Previous questionNext question

More questions on Structural isomerism: chain, position, functional, metamerism

Which of the following is a functional isomer of ethylamine, CH3CH2NH2? NEET level
CH3CH2CH2COOH and CH3COOCH2CH3 are related as JEE Main level
Which pair consists of metamers? JEE Main level
Acetone, CH3COCH3, and prop-1-en-2-ol, CH2=C(OH)CH3, are best described as JEE Main level
Which of the following is an isomer of nitroethane, CH3CH2NO2? JEE Main level
In which pair are the two compounds chain isomers? JEE Main level