JEE Main202325 Jan 2023Evening ShiftChemistryGeneral Organic ChemistryActual
Match List I with List II. Choose the correct answer from the options given below :- List I Isomeric pairs List II Type of isomers A Propanamine and N- Methylethanamine I Metamers B Hexan-2-one Hexan-3-one II Positional isomers C Ethanamide and Hydroxyethanimine III Functional isomers D o-nitrophenol and pnitrophenol IV Tautomers
Options
- AA - III ,   B - IV ,   C - I ,   D - II
- BA - IV ,   B - III ,   C - I ,   D - II
- CA - II ,   B - III ,   C - I ,   D - IV
- DA - III ,   B - I ,   C - IV ,   D - II
Correct answer
D. A - III ,   B - I ,   C - IV ,   D - II
Step-by-step solution
Metamers are the isomers having the same molecular formula but different alkyl groups on two sides of functional groups. Positional isomers are constitutional isomers with the same carbon skeleton and will have the same functional group. Functional isomers are structural isomers that have the same molecular formula (that is, the same number of atoms of the same elements), but the atoms are connected in different ways so that the groupings are dissimilar. Tautomerism is a phenomenon where a single chemical compound