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Which of the structure(s) shown is the most reactive in an E2 reaction?

Which of the structures shown is the major product of the given elimination?

Using the bond dissociation energies given, calculate ΔH° for the following reaction.     Bond A-B   ΔH° KJ/mol (CH3)2CH-Cl 335 (CH3)2CH-I 222 H-I 297 H-Cl 431

What is the mechanism for the following elimination?

How could you change the reaction conditions given to most strongly favor an E2 mechanism?

Which of the structures shown is the most stable cation?

Which of the choices is an elimination reaction?

Which choices is a potential energy diagram for an exothermic SN1 reaction?

Predict the sign of ∆G for an endothermic reaction with an increase in entropy.

Predict the sign of ∆G for an exothermic reaction with a decrease in entropy.