Organic Chemistry & Analysis Random Retrieval

10

Organic Chemistry & Analysis Random Retrieval

This quiz contains all the questions in the Organic Chemistry & Analysis section. The website will pick 10 questions at random.

1 / 10

This is the 13C NMR spectrum of:

2 / 10

When ethene reacts with bromine in the presence of aqueous sodium chloride the organic products include:

(i) CH2BrCH2Br

(ii) CH2BrCH2Cl

(iii) CH2ClCH2Br

(iv) CH2ClCH2Cl

3 / 10

Which of these reagents are nucleophiles?

(i) Br2

(ii) NH3

(iii) NO2+

(iv) CN-

4 / 10

The relative rates of hydrolysis for these halogenoalkanes are in the order

C4H9I > C4H9Br > C4H9Cl

This trend correlates with the:

5 / 10

Which of these characteristics of polymers accounts for the difference between low density and high density poly(ethene)?

[1] the average length of the polymer chains

[2] the type of intermolecular (interchain) forces

[3] the number and size of bulky side groups

[4] the extent of chain branching

6 / 10

Which of these repeat units gives rise to a polymer which is soluble in water:

7 / 10

In a peptide made up of a sequence of four amino acids the number of peptide bonds is:

8 / 10

Which of the following molecules is/are examples of 2o amines?

(i) 

(ii)

(iii) 

(iv) 

9 / 10

Excess LiAlH4 in dry ether (this reacts similarly to NaBH4 but is more reactive), converts propanoic acid to:

10 / 10

The reaction of propanone with HCN in the presence of some KCN is an example of:

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