Problem 83
Carbocation is the reaction intermediate in which of the following reactions? (1) \(\mathrm{E}_{1}\) reactions (2) Clectrophilic addition reactions of alkenes and alkynes (3) \(\mathrm{SN}_{1}\) reactions (4) All of the above
Problem 87
Which one of the following is correct? Formic acid has lower \(p K_{a}\) than that of \(\mathrm{CH}_{3} \mathrm{COOH}\) because (1) formic acid does not dissociate (2) formic acid does not have alkyl group (3) formic acid is smaller in size than acetic acid (4) formic acid is a strong reducing acid
Problem 100
The addition of \(\mathrm{KI}\) increases the rate of the reaction \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{C} 1+\mathrm{H}_{2} \mathrm{O} \longrightarrow \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}+\mathrm{HCl}\) This is because I is a (1) good nucleophile and a good leaving group (2) a poor nucleophile and a poor leaving group (3) a poor nucleophile and a good leaving group (4) a good nucleophile and a poor leaving group
