What Is the Correct Order of the Cahn-Ingold-Prelog Ranking of the Following

question 66

Multiple Choice

What is the correct order of the Cahn-Ingold-Prelog ranking of the following substituents as used in assigning R and S configurations of chiral centers? (higher ranking > lower ranking)
1.-C-CH
2.-CH₂NH₂
3.-NHCH₃
4) -CN

• A)3 > 2 > 4 > 1
• B)4 > 3 > 1 > 2
• C)3 > 4 > 2 > 1
• D)4 > 3 > 2 > 1

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