Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section
Other important addition reactions of alkenes
19 practice questions
Practice questions
11–19 of 19
Question 11
1 mark · Normal
Answer and check →Which product is formed when ethene reacts with steam under suitable conditions?
- A.Methanol
- B.Ethanol
- C.Propane
- D.Ethane
Question 12
2 marks · Normal
Answer and see the solution →State the type of reaction and name the product formed when ethene reacts with hydrogen.
Question 13
4 marks · Normal
Answer and see the solution →The hydration and hydrogenation of ethene are both addition reactions important in industry.
(a)[1 mark]Write the balanced equation for the hydrogenation of ethene including the structural formula of the product.
(b)[1 mark]State a use of this reaction in the food industry.
(c)[1 mark]Write the balanced equation for the hydration of ethene to form ethanol, including state symbols.
(d)[1 mark]Give one industrial use for ethanol produced in this way.
Question 14
3 marks · Normal
Answer and see the solution →Ethene is hydrogenated in industry to form ethane by adding hydrogen gas. Calculate the mass of ethane produced when 4.2 g of ethene reacts completely with excess hydrogen. (Relative atomic masses: C = 12, H = 1)
Question 15
3 marks · Normal
Answer and see the solution →The hydration of ethene is used industrially to make ethanol from ethene and steam. Write a balanced chemical equation for this reaction. Give two reasons why converting ethene to ethanol by hydration is important for industry.
Question 16
4 marks · Normal
Answer and see the solution →The table shows two important reactions of ethene.
Addition reactions of ethene Name of reaction Reactants Product Hydrogenation Ethene (), hydrogen () Hydration Ethene (), water (steam, ) (a)Complete the table by writing the balanced symbol equation for each reaction. Write the correct chemical formula for each product.
(i)[1 mark]Hydrogenation of ethene:
(ii)[2 marks]Hydration of ethene:
(b)State the names of the organic products formed in the two reactions above.
(i)[0.5 marks]Product from hydrogenation:
(ii)[0.5 marks]Product from hydration:
Question 17
2 marks · Hard
Answer and see the solution →Write a balanced chemical equation for the hydration of ethene, and name the product formed.
Question 18
5 marks · Hard
Answer and see the solution →Ethene is an important starting material in the chemical industry.
(a)[2 marks]Write the balanced chemical equation for the hydrogenation of ethene.
(b)[2 marks]Write the balanced chemical equation for the hydration of ethene.
(c)[1 mark]State one use for the product of the hydration reaction.
Question 19
2 marks · Hard
Answer and see the solution →State the type of reaction that occurs when ethene reacts with hydrogen, and name the product formed.