Final Answer:
The Newman projection represents 3-methylpentane. This conclusion is reached by identifying the longest carbon chain and the position of the methyl group on the third carbon.Thus,the correct option is 4.
Step-by-step explanation:
In the Newman projection, the carbon chain is viewed end-on, and the substituents on each carbon are shown as if looking along the C-C bond. In this case, we need to analyze the Newman projection to determine the compound it represents. The longest carbon chain appears to be five carbons, and there is a methyl group attached to the third carbon. This corresponds to the structure of 3-methylpentane.
To confirm this, we can count the carbons in the chain: 1-2-3-4-5. The third carbon has a methyl group attached, consistent with the structure of 3-methylpentane. The other answer choices can be ruled out by counting the carbons in the longest chain and checking the position of the methyl group. For instance, 2-methylhexane has a six-carbon chain, so it doesn't match the given projection. Similarly, 2-methylpentane has a four-carbon chain, and 3-methylhexane has a six-carbon chain.
Therefore, the correct compound corresponding to the Newman projection is 3-methylpentane. The Newman projection provides a unique perspective to analyze the spatial arrangement of atoms in organic molecules, and understanding how to interpret these projections is crucial for identifying the correct compound.
Therefore,the correct option is 4.