Which of the following is (are) possible Newman projections for 2-methylpentane?

Question

Which of the following is (are) possible Newman projections for 2-methylpentane?
Draw the staggered and eclipsed conformations that result from rotation around the C-C bond irn CH3-CH2Br. Problem 4.14 Problem 4.15 Which of the following is (are) possible Newman projections for 2-methylpentane? CH3 CH3 CH2CH3 CH3 CH3 CH&CH2; 2-methylpentane The staggered and eclipsed conformations of ethane interconvert at room temperature, but each conformation is not equally stable. . The staggered conformations are more stable (lower in energy) than the eclipsed conformations.

Explanation / Answer

Shown here are the staggered forms of Newman projection of 2-methylpentane

Possible Newman projection would be "B". Hydrogen and substituents are placed based on the basic structure of the molecule. Substituents and H atoms are shown in colored lines and rings and their respective positions changes according to different projections below. Starting with the given structure the sawhorse projection is obtained as below, which yields the Newman projection of the molecule. The below Newman projection resembles option B as in the question

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