The correct answer of this question is 4.
If propane is dichlorinated, the resulting structural/constitutional isomers are the positional ismoers having different IUPAC names.
The resulting possible isomers are:-
1-1, dichloro propane
1-2, dichloro propane
2-2, dichloro propane
1-3, dichloro propane
Thus, we have 4possible constitutional isomers of dichlorinated propane.
Structural isomers or constitutional isomers are also known as constitutional isomers as they have same molecular formula but different in their structure or have different structural formula.
Structural isomers are further divided into five types:-
To learn more about Structural isomers, refer this link.
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