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BITSAT 2024Paper 2
Exam
BITSAT
Year
2024
Paper
Paper 2
Subject
Chemistry
Chapter
General Organic Chemistry

BITSAT 2024 · Paper 2 · Chemistry · General Organic Chemistry

Correct order of stability of carbanion is

Correct order of stability of carbanion is Correct order of stability of carbanion is

Options

  1. AC>B>D>A\mathrm{C}>\mathrm{B}>\mathrm{D}>\mathrm{A}
  2. BA>B>C>D\mathrm{A}>\mathrm{B}>\mathrm{C}>\mathrm{D}
  3. CD>A>C>B\mathrm{D}>\mathrm{A}>\mathrm{C}>\mathrm{B}
  4. DD>C>B>A\mathrm{D}>\mathrm{C}>\mathrm{B}>\mathrm{A}

Correct answer

D. D>C>B>A\mathrm{D}>\mathrm{C}>\mathrm{B}>\mathrm{A}

Step-by-step solution

As we know compound (4) is aromatic and the compound (1) is anti-aromatic. Hence compound (4) is most stable and compound (1) is least stable among these in compound (2) and (3) carbon atom having charge is sp3\mathrm{sp}^3 hybridised. On the basis of angle strain theory compound (3) is more stable than compound (2). Correct order of stability of carbanion is
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