Question

Please Explain the Answer

Question 2 (Parts A-C, 20 points): Use the energy diagrams shown below to answer parts A and B. on Products Rectants Energy Products Reactants Reaction coordinate (a) Highly exothermic reaction Reaction coordinate (b) Highly endothermic reaction A) Does the structure of the transition state in the endothermic reaction resemble that of the reactants or the products? B) Which energy diagram best represents the rate determining step of free radical bromination (Br,, light) of butane: the one on the left or the one on the right? C) Will the major product of free radical bromination (Br. light) of butane be: achiral, racemic, or a single enantiomer?

Answer 1

(A) Structure Resembles Sherwe 0 Transistion alue in endothermic That of products According to Hammond Postul are en endothermic Reaction Transiotion Bo Close than to Reactants in ENERGY. Therefore Steve Resembles Procluus. to pooducts Transes tion (B). Boromination - Endothermic Reacton So Right one which is highly Enclo theu mic Recution is Repuesented by fuce Radreae Buominasien - Because By po Highly selectue and recitant has very High Ea (achvation Energy) and Burmine also less Reactive than chlorine . . U V thir al carbon by > the ~ + ~ 98% 20% So singee major produt will be an Roumi e mexrum BX H B H Racemic mixtwy