Chemistry Answers

Complete the following reactions:H3C Br H3C CH3CONa/CH3CH2OH

Write the mechanism for Knoevenagel condensation. 

How you will distinguish between aldehydes and ketones? 

Why thionyl chloride is generally used to convert alcohols to alkyl halides? Taking suitable example write the mechanism of the reaction of an alcohol with thionyl chloride.

Explain following: Ether is the major product in the reaction of tert-butylbromide with ethanol

Explain following: Reaction of silver cyanide with bromopropane gives 1-propylisonitile not npropyl cyanide. 

Write the mechanism of the reaction of allyl chloride with water.

What do you understand by ortho and para-directing activator? Explain with the help of a suitable example.

Write the mechanism of the Friedel-Crafts alkylation reactions. 

Write chemical equation(s) for following conversions : i) Phenol to benzene ii) Ethylbenzene to 1-chloro-1-phenylethane iii) Aniline to chlorobenzene iv) Phenol to 4-hydroxybenzaldehyde v) Anisole to phenol