AIPMT 2006 Mock Test

A carbonyl compound reacts with hydrogen cyanide to form cyanohydrin which on hydrolysis forms a racemic mixture of $\alpha$ -hydroxy acid. The carbonyl compound is :

Which one of the following is a peptide hormone?

The major organic product in the reaction,${\text{CH}}_3-\text{O}-\text{CH}({\text{CH}}_3{)}_2+\text{HI}\to \text{Product}$ is :

Nucleophilic addition reaction will be most favoured in :

The enthalpy of combustion of ${\text{H}}_2$, cyclohexene (${\text{C}}_6{\text{H}}_{10}$) and cyclohexane (${\text{C}}_6{\text{H}}_{12}$) are -241, -3800 and -3920 kJ per mol respectively. Heat of hydrogenation of cyclohexene is :