Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Unit
Organic Chemistry
785 practice questions
Topics covered
Practice questions
391–400 of 785
Question 391
1 mark · Easy
Answer and see the solution →Write the molecular formula of the product when ethene is hydrogenated.
Question 392
3 marks · Easy
Answer and see the solution →(a)[1 mark]Name the starting materials used in the industrial production of ethanol from ethene.
(b)[1 mark]Write the balanced equation for this process.
(c)[1 mark]State one condition required for this reaction.
Question 393
2 marks · Easy
Answer and see the solution →How many moles of hydrogen are needed to react with 0.60 mol of ethene during hydrogenation?
Question 394
2 marks · Normal
Answer and see the solution →Write a balanced chemical equation for each of the following reactions involving ethene:
(a)[1 mark]Hydrogenation of ethene to form an alkane.
(b)[1 mark]Hydration of ethene to form an alcohol.
Question 395
4 marks · Normal
Answer and see the solution →Ethene can undergo different addition reactions.
(a)[1 mark]Write the balanced chemical equation for the hydrogenation of ethene.
(b)[1 mark]Name the product formed in this reaction.
(c)[1 mark]Write the balanced chemical equation for the hydration of ethene (include state symbols for steam and ethanol).
(d)[1 mark]State two conditions required for the hydration of ethene.
Question 396
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 397
2 marks · Normal
Answer and see the solution →State the type of reaction and name the product formed when ethene reacts with hydrogen.
Question 398
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 399
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 400
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.