Question 1

Paper 2Medium6 marks

In aqueous solution, bromoethane reacts with hydroxide ions. Figure 1 shows the reactants; the products are not shown.

CH3CH2Br(l)+[HO−](aq)
(a)

On Figure 1, draw one curly arrow to show the movement of the bonding pair in the C—Br bond during the reaction.

[1]
(b)

Write a balanced ionic equation for the reaction, using structural formulae for the organic compounds and including state symbols.

[2]
(c)

Using Figure 1 and your equation in (b), deduce the type of reaction and explain the electron-pair changes at outcome level. Do not give a detailed mechanism.

[3]

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