Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Unit
Organic Chemistry
785 practice questions
Topics covered
Practice questions
431–440 of 785
Question 431
2 marks · Normal
Answer and see the solution →State the IUPAC name for the alcohol with the structural formula CH3CH2CH2OH. Explain which features of the name identify it as an alcohol.
Question 432
4 marks · Normal
Answer and see the solution →This question is about different alcohols up to four carbon atoms.
(a)[2 marks]Draw the displayed formula of ethanol. Show all bonds clearly.
(b)[1 mark]State the molecular formula of butan-1-ol.
(c)[1 mark]Give the structural formula for methanol.
Question 433
3 marks · Normal
Answer and see the solution →An alcohol contains four carbon atoms in a straight chain with the –OH group attached to the second carbon.
State the IUPAC name of this alcohol. Show all steps in your answer.
Question 434
2 marks · Hard
Answer and see the solution →Draw the displayed formula for propan-2-ol. Clearly show all atoms and bonds, including the –OH group.
Question 435
5 marks · Hard
Answer and see the solution →The molecule with the structural formula CH3CH2CH2OH is an alcohol.
(a)[1 mark]State the IUPAC name for this alcohol.
(b)[4 marks]Justify your answer by explaining the naming process step by step, referring to the features of the molecule.
Question 436
2 marks · Hard
Answer and see the solution →State the molecular formula for butan-1-ol. Then, state the number of carbon atoms in a molecule of butan-1-ol.
Question 437
1 mark · Easy
Answer and see the solution →State the names of the two products formed when ethanol is completely burned in air.
Question 438
3 marks · Easy
Answer and see the solution →Ethanol, C2H5OH, burns in air.
(a)[1 mark]Write the balanced chemical equation for the complete combustion of ethanol.
(b)[1 mark]State the name of the homologous series to which ethanol belongs.
(c)[1 mark]Name the functional group present in ethanol.
Question 439
2 marks · Easy
Answer and see the solution →Calculate the total number of oxygen atoms in the products formed when one molecule of ethanol combusts completely in air. Show your working.
Question 440
3 marks · Easy
Answer and see the solution →The table shows the volume of carbon dioxide produced when different volumes of ethanol are completely burned in air.
Volumes of ethanol and carbon dioxide from combustion Volume of ethanol burned (cm^3) Volume of CO2 produced (cm^3) 1 2 2 4 3 6 4 8 (a)[1 mark]Describe the relationship between the volume of ethanol burned and the volume of carbon dioxide produced.
(b)[1 mark]Predict the volume of carbon dioxide produced if 5 cm^3 of ethanol is completely burned.
(c)[1 mark]Suggest why the volume of carbon dioxide produced is always double the volume of ethanol burned.