Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET2017ChemistryAminesActual

Assertion : Oxidation of 1-nitronaphthalene gives o -nitrophthalic acid whereas 1-amino naphthalene on oxidation gives phthalic acid. Reason: An amino group attached to the benzene ring makes it resistant to oxidation whereas nitro group makes the benzene ring susceptible to oxidation.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

C. If assertion is true but reason is false.

Step-by-step solution

An amino group increases the electron density in the benzene ring to which it is attached thereby making it susceptible to oxidation while a nitro group decreases the electron density in the benzene ring to which it is attached thereby making it resistant to oxidation. Instead, the other benzene ring gets oxidised giving o -nitrophthalic acid as shown below :

Practice Amines on Quantrex Academy →

More from Amines

IN a chemical reaction Aniline is treated with NaNO ₂ and HCl to form a compound X. When X is further hydrolyzed by supplying heat it forms compound Z. Identify Z in this reaction. 2026Which of the following compounds is converted to sulfanilic acid by sulfonation? 2026Identify the product obtained when nitro alkanes are treated with Sn / HCl. 2026Identify the activity of ammonia due to the presence of lone pair of electrons in it, from following. 2026Which of the following is least alkaline ? 2026What type of compound the aniline is? 2026What type of amine is tert-Butyl amine? 2026Which is the correct decreasing order of boiling point for following amines? Tertiary amine (I), Secondary amine (II), Primary amine (III) 2026 Full Amines list All NEET PYQs