CBSE Class 11-science Chemistry Organic Chemistry

• calculate resonce energy for benzene?
• why happens when propene reacts with HBr. Discuss mechanism of the reaction 
• Ethanol to ethanal  
• 22nd answer wid explanation
  
• what is friedel-craft reaction . explain with an example.
• What is the electrophilic centre in the molecule CH₃CN?
• What are the different types of organic reactions?
• What is a nucleophile and what is an electrophile?
• Categorise the following ions as nucleophile or electrophile? HS^-, BF₃, NO₂⁺, C₂H₅O^-, NH₂^-
• What is a substitution reaction? Give an example.

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