Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Unit
Organic Chemistry
785 practice questions
Topics covered
Practice questions
71–80 of 785
Question 71
4 marks · Normal
Answer and see the solution →(a)[1 mark]The formula for an organic compound is CH3CH2CH2OH.
i) State the functional group present.
(b)[1 mark]ii) Name the homologous series to which this compound belongs.
(c)[2 marks]iii) Give the IUPAC name of the compound.
Question 72
3 marks · Normal
Answer and see the solution →A hydrocarbon has the following displayed formula:
Apply IUPAC rules to determine the correct name of this compound.
Question 73
2 marks · Hard
Answer and see the solution →The condensed structural formula of a hydrocarbon is given below:
State the IUPAC name for this compound.
Question 74
5 marks · Hard
Answer and see the solution →A student is trying to name the following organic compound. The displayed formula is shown below.
(a)[1 mark]i) State the total number of carbon atoms in the molecule.
(b)[1 mark]ii) Identify the functional group present in the molecule.
(c)[1 mark]iii) Write the structural formula for this compound using condensed notation.
(d)[1 mark]iv) State the homologous series to which this compound belongs.
(e)[1 mark]v) Give the correct IUPAC name for this compound.
Question 75
2 marks · Hard
Answer and see the solution →An organic compound has the structural formula shown below:
Give the IUPAC name for this compound.
Question 76
1 mark · Easy
Answer and see the solution →State the meaning of the code letters 'eth' in the name of an organic compound.
Question 77
3 marks · Easy
Answer and see the solution →(a)[1 mark]State the definition of an alkane.
(b)[1 mark]Give the code letters that indicate a chain of five carbon atoms in the name of an organic compound.
(c)[1 mark]Write the ending used in the name of an alkene.
Question 78
2 marks · Easy
Answer and see the solution →A certain alkane has the name 'pentane'. Calculate the total number of hydrogen atoms in one molecule of pentane.
Question 79
2 marks · Easy
Answer and see the solution →Explain how you can tell from its name that but-2-ene belongs to the alkene family and not the alkane family.
Question 80
3 marks · Easy
Answer and see the solution →The table shows the names and formulas of some organic compounds.
Table: Names and formulas of organic compounds. Name Formula methane CH4 ethene C2H4 propane C3H8 butene C4H8 (a)[1 mark]Which compound in the table contains a carbon–carbon double bond?
(b)[1 mark]State the code letters that indicate a three-carbon chain in an organic compound.
(c)[1 mark]Give the homologous series to which 'butene' belongs.