COMPASSLearning
RegisterLogin

JEE Advanced · 2009 · 12 Apr 2009 · Paper 1 · General Organic Chemistry

WhatsApp Email
The IUPAC name of the following compound is

(see structure)
  1. (A)4-Bromo-3-cyanophenol
  2. (B)2-Bromo-5-hydroxybenzonitrile✓ Correct
  3. (C)2-Cyano-4-hydroxybromobenzene
  4. (D)6-Bromo-3-hydroxybenzonitrile

Answer: (B)

Solution

In IUPAC nomenclature, the principal functional group gets the lowest number. For this compound:
  • The cyano group (–CN) has the highest priority and is designated as benzonitrile
  • Numbering starts from the carbon bearing the CN group (position 1)
  • The Br is at position 2
  • The OH is at position 5

Therefore, the IUPAC name is 2-Bromo-5-hydroxybenzonitrile.

The answer is (B).

JEE Advanced · 2009 · 12 Apr 2009 · Paper 1 · Single correct option

Practise more: all JEE Advanced PYQs on General Organic Chemistry →

More JEE Advanced questions on General Organic Chemistry

  1. Considering reduces an ester group to the corresponding alcohol and does not reduce a carboxylic acid group, the correct statement about the major products P, Q R and S is
    JEE Advanced 2026View solution →
  2. The number of isomeric tetraenes (NOT containing -hybridized carbon atoms) that can be formed from the following reaction sequence is ____.
    JEE Advanced 2022View solution →
  3. Among the following, the conformation that corresponds to the most stable conformation of meso-butane-2,3-diol is -
    JEE Advanced 2021View solution →
  4. Newman projections P, Q, R and S are shown below:

    Which one of the following options represents identical molecules?
    JEE Advanced 2020View solution →
  5. Which one of the following structures has the IUPAC name 3-ethynyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid?
    JEE Advanced 2020View solution →
  6. With respect to the compounds I-V, choose the correct statement(s).
    JEE Advanced 2020View solution →