Question

Experiment 1 Comment on Structure and Formula Alkyl Halide Name Nucleophile Time (min) to relative reaction Precipitate rates of alkyl halides wwte preci pi tote 2. whte vii. cl chloro min nprecipi tote ci benzul 0 Secs preci p tate Experiment 2 Comment on Alkyt Halide Name Structure and Time (min) to relative reactivity Precipitate of the leaving NucleophileT Formula group white vin prei p min whi te Ci Do reactidi no 咐ano

Answer 1

Structure of substrate in experiment 1 A. = > 1-chlorobutane B. = > 2-chlorobutane c. = > 2-chloro-2-methyl-propane D. = > benzyl chloride As we know that in substitution reactions rate of the reaction depends on leaving power of the leaving group. Best leaving group is that which is stable after leaving in other words we can say that best leaving group is that which form strong acid. In experiment 2, 2-bromobutane leaving group Br^- 2-chlorobutane leaving group cl^- 2-butanol leaving group O^- H Here Br^- is more stable leaving group after leaving due to large size. \r\n O^- H is least stable leaving group after leaving. So, in case of same type substrate (z degree) and nucleophile (I^-). Substrate with leaving group Br^- give fastest substitution reaction and substrate with O^- H leaving group give slowest substitution. Rate law for SN^2 = rate = k[substrate]^1 [Nucleophile]^1 Here k = rate constant Hint rightarrow SN^2 = a second order reaction, means rate depends both the