Organic Chemistry - Some Basic Principles and Techniques questions

1502 published questions with worked solutions.

• The most stable carbocation among the following cyclic cations is
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• The stability of a carbocation decreases in the order
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Which of the following belongs to the +I group?
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Correct order of nucleophilicity (in protic solvent) is
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Correct order of carbanion stability is
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Order of stability of the carbanions I–IV (a simple alkyl carbanion, an allylic-type carbanion, cyclopentadienide, and a further...
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• During the addition of bromine to ethene, the first species formed is
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• List the following alkoxide nucleophiles — Me₃CO⁻ (1), MeO⁻ (2), MeCH₂O⁻ (3), Me₂CHO⁻ (4), cyclobutoxide (5) — in decreasing...
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Which of the following compounds yields the most stable carbanion after rupture of the C1–C2 bond shown?
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Which of the following statements is NOT characteristic of a free-radical chain reaction?
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Arrange the carbocations (1) diphenylmethyl cation, (2) benzyl cation, (3) allyl cation, (4) cycloheptatrienyl (tropylium) cation...
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Statement 1: The resonance structure placing the negative charge on the carbonyl oxygen and positive charge on the hydroxyl...
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Among the following, the strongest nucleophile is
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Which one of the following compounds is most acidic?
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Which of the following structures has resonance stability?
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• The bond that undergoes heterolytic cleavage most easily is
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Statement 1: The order of stability of carbocations is R₃C⁺ > R₂CH⁺ > RCH₂⁺ > CH₃⁺. Statement 2: The stability of carbocations is...
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Consider the carbanions p-CH₃O–C₆H₄–CH₂⁻ (I), p-O₂N–C₆H₄–CH₂⁻ (II), C₆H₅–CH₂⁻ (III). The correct order of stability is
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• The most stable carbanion is
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Which of the following is a singlet carbene?
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques

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