A solution of urea in water has a boiling point of $373.128 \mathrm{K}$. Find out the freezing point of the same solution. ( Given for water ${\mathrm{K}}_{\mathrm{f}}=1.86 {\mathrm{Km}}^{-1}, {\mathrm{K}}_{\mathrm{b}}=0.52 {\mathrm{Km}}^{-1}$)

How is phenol converted to acetophenone?

How are the following conversion carried out?

Ethanol to methanol

Give the structure and the IUPAC name of the major product obtained in the following reaction

Write the mechanism of the reaction of acid (${\mathrm{H}}_2{\mathrm{SO}}_4$) with ethene.

Identify A and B in the following reactions :

Identify A and B in the following reactions :

Give the structure and IUPAC name of the major product obtained in the following reaction.