Question

how many stereogenic carbons are in the following molecule?
0
1
2
3
4

Explanation:

Step1: Define stereogenic carbon

A stereogenic (chiral) carbon is bonded to 4 distinct groups.

Step2: Analyze first marked carbon

The carbon with -OH: bonded to H, -OH, two distinct alkyl chain segments (one leading to -CH₃, the other a different cyclohexyl portion). All 4 groups are unique.

Step3: Analyze second marked carbon

The carbon with -CH₃: bonded to H, -CH₃, two distinct alkyl chain segments (one leading to -OH, the other a different cyclohexyl portion). All 4 groups are unique.

Step4: Count valid stereogenic carbons

No other carbons in the cyclohexane ring have 4 distinct substituents.

Answer:

2