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Question 7 of 19 in Other important addition reactions of alkenes

Other important addition reactions of alkenes

3 marks · Easy
(a)

Name the starting materials used in the industrial production of ethanol from ethene.

[1 mark]
(b)

Write the balanced equation for this process.

[1 mark]
(c)

State one condition required for this reaction.

[1 mark]

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(a) Ethene and steam

(b) \ce{C2H4 + H2O -> C2H5OH}

(c) Temperature of about 300 °C OR phosphoric acid catalyst OR pressure of 60–70 atm

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Marking points

B1 (a) · 1 mark · Names both starting materials: ethene and steam (or water).

A1 (b) · 1 mark · Writes correct balanced equation: \ce{C2H4 + H2O -> C2H5OH}

B2 (c) · 1 mark · States any one condition (temperature, pressure, or catalyst)

Worked solution

(a) Ethene and steam.

(c) Condition: e.g. 300 °C, or use of phosphoric acid catalyst.

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