GRE Subject Test: Chemistry : Other Intermediates

Study concepts, example questions & explanations for GRE Subject Test: Chemistry

varsity tutors app store varsity tutors android store

Example Questions

Example Question #1 : Identifying Enolates

Which of the following transformations includes an enolate intermediate?

 Q12

Possible Answers:

II and III

III only

I and III

I, II, and III

I and II

Correct answer:

II and III

Explanation:

Enolates are formed by an oxygen anion bound to an alkene carbon. Reactions II and III include an enolate intermediate, as shown in the mechanisms below, whereas reaction I is a simple SN2 reaction and does not include an enolate intermediate. Enolates are highlighted in red. 

A12

Learning Tools by Varsity Tutors