please answer ALL The next three questions pertain to the followlog diagram: Vt

Question

please answer ALL

The next three questions pertain to the followlog diagram: Vt VII 28. Which statement is correct about this energy diagram? A. it represents a 7-step exergonic (exothermic) reaction C. there are three intermediates in this reaction D. the first step is faster than the second step 29. Which Roman numbers on the diagram correspond to transition states? A. All of them B. II and IV and VI C. I and VII and VIII D. III and V ld correspond to this diagram? A. An E2 elimination (e.g. reaction of tert-butyl bromide with sodium methoxide) B. An Sy2 reaction (e.g. methyl bromide plus sodium methoxide) C. An SyI reaction (e.g. cyclohexyl bromide plus methanol pl D. An El elimination (e.g. cyclohexyl bromide heated in acetic acid) E. none of the above

Explanation / Answer

(28)

This reaction is a three step reaction, it is exergonic and has only two intermediates and three transition states.

So the correct option is (B)

(29)

The transition states are represented by the numbers II, IV and VI

(30)

The correct option is none of these, because this is a three step reaction, and SN1 and E1 reactions are two step reactions and SN2 and E2 are one step reactions.

(31)

Tetrahydrofuran can be used as a solvent for reactions involving sodium methoxide, because it is polar aprotic solvent. Sodium methoxide is basic and its basicity increases when the solvent used is polar aprotic. All the other solvents given in this question are polar protic because they contain an -OH group.

Hope this helps !

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