DP Chemistry (last assessment 2024)

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Question 17N.3.sl.TZ0.8b.i

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Date November 2017 Marks available [Maximum mark: 1] Reference code 17N.3.sl.TZ0.8b.i
Level sl Paper 3 Time zone TZ0
Command term State Question number b.i Adapted from N/A
b.i.
[Maximum mark: 1]
17N.3.sl.TZ0.8b.i

Consider the following lipid and carbohydrate.

In order to determine the number of carbon-carbon double bonds in a molecule of linoleic acid, 1.24 g of the lipid were dissolved in 10.0 cm3 of non-polar solvent.

The solution was titrated with a 0.300 mol dm–3 solution of iodine, I2.

(b.i)

State the type of reaction occurring during the titration.

[1]

Markscheme

«electrophilic» addition/AE

OR

oxidation–reduction/redox

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