Question

which of the following conpounds in isomer​

Answer 1

$\huge\sf\underline{Answer}:$

Chemical compounds that have the same molecular formula, but different molecular structures are said to be isomers.

Propane = C3H8 = 1

Butane = C4H10 = 2

Pentane = C5H12 = 3

Hexane = C6H14 = 5