Chem

4Below is the high resolution 1H NMR spectrum of flux G
[pic]
This compound contains C, H and N atoms.

1 How many peaks are there in the first signal (past the TMS from the right) and what seat be concluded from this?

1½ marks

2 How many peaks has the second signal split into, and what can be concluded from this?

1½ marks
3 Determine the semi- structural command of compound G and ca-ca the compound.

2 marks
4 puzzle the structural formula of deepen G.

1 mark

5 apply the chemic shift correlation for 13C NMR, predict the number of peaks for aggregate G and draw in the position of the peaks on the dope spectrum below, annotating each peak with its corresponding structure.

(2 marks)

6 commit the structural formula for 2-chloro but-2-ene. Below this draw a structural formula of an isomer of 2-chloro but-2-ene and name this substance.

2 marks

Part B - chemical substance Pathways

Below is the high resolution 1H NMR spectrum of another hydrocarbon Compound H, containing
only C and H atoms (Mr = 58.0 amu)

7Identify this hydrocarbon and quest your reasoning.

(2 marks)
8Show 2 possible products that could form when Compound H undergoes a halogenation answer with iodine. Draw the structural isomers and name them.

2 marks

9a Is this halogenation answer is an addition or substitution reaction?





½ mark

9b Under what conditions would this reaction occur?

½ mark

10 Outline the reaction pathway to produce propanoic acid from propane.
Write the chemical reactions (using chemical structures) indicating reactants and any special conditions.

2 marks

11 Name either the chemical species in Q10 using the IUPAC system.

1 mark

12 If you baffle the product formed in Q10 in a fundamental solution, what would the resulting ion look like?

1 mark

13a Indicate the chemical equivalence when your product from question 10 undergoes a
O
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