Organic Chemistry - Some Basic Principles and Techniques questions

1502 published questions with worked solutions.

• The energy difference between the chair and boat forms of cyclohexane is close to
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Who proposed the tetrahedral-carbon model that explains a pair of enantiomers as non-superimposable mirror images?
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Which condensed formula correctly represents a pentane (C₅H₁₂ isomer)?
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Which statement about enantiomorphs (enantiomers) is **incorrect**?
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Among the anions CH₃⁻ (a), NH₂⁻ (b), OH⁻ (c) and F⁻ (d), the correct order of basicity is
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• A carbocation (carbonium ion) is formed when a covalent bond between two atoms in an organic compound undergoes
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• *d*-Tartaric acid and *l*-tartaric acid are
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Which of the following is necessarily true for any pair of isomeric organic compounds?
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• The correct order of stability of carbanions is
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• The intermediate formed during the (anti-Markovnikov, peroxide-catalysed) addition of HBr to propene is
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• (CH₃)₂C(NH₂)–CH₂–CO–CH₃ may correctly be called
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Carbanions can initiate
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• The IUPAC name of CH₂(CN)–CH(CN)–CH₂(CN) is
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• [JEE Advanced 2014] For the compound shown in a Newman projection (front carbon bearing Br and CH₃; back carbon bearing Cl and...
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• *m*-Dihydroxybenzene is also called
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• Which group would you introduce into a drug or dye to make it water-soluble?
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• [IIT 2005] In the reaction *p*-CH₃–C₆H₄–CHO + X —CH₃COONa, H₂O→ *p*-CH₃–C₆H₄–CH=CH–COOH, the reagent X is
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• [IIT 1995] When phenol is reacted with CHCl₃ and NaOH, followed by acidification, salicylaldehyde is obtained. Which species are...
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• [AIEEE 2009] In Cannizzaro's reaction, 2PhCHO —OH⁻→ PhCH₂OH + PhCOO⁻, the slowest step is
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques
• [IIT 1996] Among *p*-nitrophenol (I), *o*-nitrophenol (III), *p*-cresol (II) and phenol (IV), the correct order of decreasing...
  JEE Main · Chemistry · Organic Chemistry - Some Basic Principles and Techniques

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