O. Chem Ii - Quiz 5

Front 1

How many signals appear in the proton-decoupled 13C NMR spectrum of the following compound?

Back 1

7

Front 2

Which of the carbon atoms in the following molecule appears furthest downfield in the 13C NMR spectrum?

Back 2

iii

Front 3

Which of the following compounds would give a 1H NMR spectrum consisting of two singlets and a 13C NMR, consisting of three signals?

Back 3

Only iii and iv.

Front 4

Predict the splitting pattern in the proton coupled 13C NMR spectrum for the following compound.

Back 4

Front 5

Which of the following is the initiation step for the monobromination of cyclohexane?

Back 5

IV

Front 6

How many products are formed from the monochlorination of ethylcyclohexane? Ignore stereoisomers.

Back 6

6

Front 7

Given the bond dissociation energies below (in kcal/mol), estimate the ΔH° for the propagation step.

Back 7

-22 kcal/mol

Front 8

Which of the following is a chain propagation step in the free radical chlorination of methane?

Which of the following is a chain propagation step in the free radical chlorination of methane?

Back 8

Front 9

Back 9

V

Front 10

In the free radical chlorination of ethane, the step in which the CI radical abstracts a H atom from ethane is ______ and the transition state most closely resembles ________.

Back 10