Question

Above two molecules are
(1) Chain isomers
(2) Position isomers
(3) Metamers
(4) All of these​

Answer 1

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POSITION ISOMERS.....!!

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Answer 2

Answer:

Chain isomers

Explanation:

If we consider the priority for functional groups for IUPAC naming, we find that -CN has more priority than -CHO. This simply means that, while naming, CN is given lesser number than -CHO.

Compound 1 is 3-formyl-2-methylpentanenitrile    

Compound 2 is 2-ethyl-3-formylbutanenitrile

Since the parent chains are different in both compounds, it is an example of chain isomerism.