A chiral carbon, C, is bonded to four different substituent groups: A, B, C, and D.
Which compound is identical to the molecule depicted above?
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A chiral carbon, C, is bonded to four different substituent groups: A, B, C, and D. Choice B has just been rotated 90 degrees: groups A and C are still out of the page in the same relative position while groups B and D are still in to the page in the correct relative position. All other choices are flawed with non-identical bonding arrangement, so B is the correct answer.
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