Question

Question 7. Consider the equilibrium of each of the carbonyl compounds with HCN to produce cyanohydrins. Which is the correct ranking of compounds in order of increasing Keg for this equilibrium? (4) A) H2C0 < cyclohexanone < CH3CHO < 2-methylcyclohexanone B) CH3CHO <2-methylcyclohexanone <cyclohexanone <H2CO C) cyclohexanone< 2-methylcyclohexanone <H2C0 < CH3CHO D) cyclohexanone < 2-methylcyclohexanone < CH3CHO <H2CO E) 2-methylcyclohexanone < cyclohexanone < CH3CHO <H2CO Question 8. Which sequence ranks the following carbonyl compounds in order of increasing rate of nucleophilic addition? (4) A) 2<3<1 B) 3<2<1 C) 2<1<3 D) 1<3<2

Answer 1

H₂ whexanone Сисно M 2-methylcyclohexanone xanne Lesser the sterre hinderance Higher will be the keqe (ANSWERE)2-methylcyclohexanone < Cyclohexanone <<H3CHO<H₂ col & increase Rate of Nucleophilic addition will decrease with in steric hinderance Ketones are more reactive than amides, ANSWER → A) 2<3<I