Home Chemistry General Organic Chemistry JEE (Main) / AIEEE Problems (Previous Year) Consider thiol anion (RS Θ ) and alkoxy anio…
Chemistry General Organic Chemistry JEE (Main) / AIEEE Problems (Previous Year) Single Correct MCQ
Published on: August 13, 2026

Consider thiol anion (RS Θ ) and alkoxy anion (RO Θ ). Which of the following statement is correct ?

A
RS Θ is less basic but more nucleophilic than RO Θ .
B
RS Θ is more basic and more nucleophilic than RO Θ .
C
RS Θ is more basic but less nucleophilic than RO Θ .
D
RS Θ is less basic and less nucleophilic than RO Θ .

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Text Solution

Verified by Experts
The correct answer is:
A

RS Θ is more nucleophilic than R–O Θ due to larger size of orbitals and polarization but RS Θ is less basic than R–O Θ as the negative charge get stabilized due to larger size of sulphur atom.

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