select-structures-that-correspond-to-the-same-compound-also-identify-structures-

Question

Select structures that correspond to the same compound. Also identify structures that correspond to different compounds.

Five chemical structures illustrating IUPAC naming of alkanes and cycloalkanes.

Accepted Answer

Structure 1, 2, 4 and 5 represent n-pentane;
Structure 3 represents 2,2-dimethylbutane

Answer

Structure 1, 2 and 3 represent 1-methylbutane;
Structure 4 and 5 represent 1,3-dimethylpropane

Answer

Structure 1, 2 and 3 represent 2,2-dimethylbutane;
Structure 4 and 5 represent 2-methylbutane

Answer

Structure 1, 2, 4 and 5 represent 2-methylpentane;
Structure 3 represents 2-methylbutane