click on all structures that are identical to the first (leftmost). if no structure qualifies, submit your…

click on all structures that are identical to the first (leftmost). if no structure qualifies, submit your answer without selecting any structure.

click on all structures that are identical to the first (leftmost). if no structure qualifies, submit your answer without selecting any structure.

Answer

Explanation:

Step1: Analyze first structure

The first structure has a carbon - center with a methyl group ($CH_3$), a bromine ($Br$), a $CHBr_2$ group and a $CH_2Br$ group.

Step2: Compare with second structure

The second structure has a different arrangement of substituents around the carbon - center. The order of attachment of groups is different from the first one.

Step3: Compare with third structure

The third structure has the same set of substituents ($CH_3$, $Br$, $CHBr_2$, $CH_2Br$) attached to the central carbon in the same relative configuration as the first structure.

Step4: Compare with fourth structure

The fourth structure has a different arrangement of substituents around the carbon - center compared to the first one.

Answer:

The third structure (the one with $H_3C$, $Br$, $CH_2Br$ and $CHBr_2$ attached to the central carbon in the given configuration) is identical to the first (left - most) structure.