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

Which of the following is an example of an activating group in electrophilic aromatic substitution?

Options

  1. ANitro (-NO 2 ) group
  2. BCyano (-CN) group
  3. CAlkyl (-R) group
  4. DPhenolic (-OH) group

Correct answer

D. Phenolic (-OH) group

Step-by-step solution

Activating groups increase electron density on the benzene ring, making it more reactive towards electrophilic aromatic substitution. The phenolic (-OH) group is an example of an activating group due to resonance and inductive effects.

Practice Hydrocarbons on Quantrex Academy →

More from Hydrocarbons

H ₃ C - CH = CH ₂ + H - Br ( C ₆ H ₅ CO )₂ O ₂, Benzoyl peroxide H ₃ C - CH ₂- CH ₂- Br Which of the following rules is followed when the above reaction occurs? 2026Which of the following reagent is NOT required for the conversion of propyne to acetone? 2026Palladised charcoal with quinoline is known as 2026Chlorination of alkane is a photochemical process. It is initiated by the process of 2026Identify A and B in above reaction. 2026Chlorobenzene is formed by the reaction between benzene and chlorine in presence of AlCl ₃ . Which of the following species actually attacks the benzene ring in this reaction? 2026Identify the product obtained when toluene reacts with chlorine in the presence of FeCl ₃ . 2026In the combustion reaction of alkanes, if 1 mole of ethane is burnt, find number of moles of oxygen required? 2026 Full Hydrocarbons list All NEET PYQs