CBSE Class 11-science Answered

Dear Student

Metamerism : Compounds having the same molecular formula but different number of carbon atoms ( alkyl groups) on either side of functional group ( i.e., -O-,-S-, -NH-, -C(=O)-) are called metamers and the phenomenon is called metamerism. metamerism occurs amongst the members of the same homologus family.

For example,

CH₃CH₂-O-CH₂CH₃ is metamer of CH₃-O-CH₂CH₂CH₃ OR CH₃-O-CH(CH₃)₂

CH₃CH₂COCH₂CH₃ is metamer of CH₃COCH₂CH₂CH₃ OR CH₃COCH(CH₃)₂

n-propyl acetate CH₃COOCH₂CH₂CH₃

Metamers:

ethyl-n-propyl acetate CH₃CH₂COOCH₂CH₃

isopropylacetate CH₃COOCH(CH₃)₂

We hope that clarifies your query.

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