Identify the correct stereochemical relationship amongst the hydrogen atoms Ha, Hb and Hc in the following… · ABC26OR0755
Subject: Organic Chemistry · Chapter: Stereochemistry · Topic: Stereochemistry – General · Exam: GATE 2000-2022 · Marks: 2 · Difficulty: Medium
Identify the correct stereochemical relationship amongst the hydrogen atoms $\mathrm{H}_{\mathrm{a}}, \mathrm{H}_{\mathrm{b}}$ and $\mathrm{H}_{\mathrm{c}}$ in the following molecule: 
(a)$\mathrm{H}_{\mathrm{a}}$ and $\mathrm{H}_{\mathrm{b}}$ : enantiotopic
(b)$\mathrm{H}_{\mathrm{a}}$ and $\mathrm{H}_{\mathrm{b}}$ : diastereotopic
(c)$\mathrm{H}_{\mathrm{a}}$ and $\mathrm{H}_{\mathrm{c}}$ : enantiotopic
(d)$\mathrm{H}_{\mathrm{b}}$ and $\mathrm{H}_{\mathrm{c}}$ : diastereotopic
Answer
Answer: B ✓ checked by 4AB · confidence high
Explanation
Ha and Hb are the exo and endo hydrogens of the same CH₂ of norbornane; replacing one or the other gives diastereomers, so they are diastereotopic (b).
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