Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Chapter
Introduction to Organic Chemistry
185 practice questions
Topics covered
- Types of formula for organic molecules19 practice questions
- General formulae18 practice questions
- Displayed formulae19 practice questions
- Naming organic compounds19 practice questions
- Coding for the type of compound19 practice questions
- Coding for branched chains19 practice questions
- Structural isomerism in the alkanes19 practice questions
- A quick introductory look at the alcohols20 practice questions
- Some chemical reactions of organic compounds21 practice questions
Practice questions
31–40 of 74 · Easy
Question 31
2 marks · Easy
Answer and see the solution →A compound has the structural formula below:
State the IUPAC name for this compound.
Question 32
1 mark · Easy
Answer and see the solution →State the meaning of the code letters 'eth' in the name of an organic compound.
Question 33
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 34
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 35
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 36
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.
Question 37
1 mark · Easy
Answer and see the solution →State the general rule for numbering the carbon atoms in a chain when naming an alkene.
Question 38
3 marks · Easy
Answer and see the solution →(a)[1 mark]State the number of carbon atoms in a molecule named 'butane'.
(b)[1 mark]Write the name of the homologous series that 'butane' belongs to.
(c)[1 mark]Give the ending that shows a compound contains a carbon–carbon double bond.
Question 39
2 marks · Easy
Answer and see the solution →A molecule of hexene contains six carbon atoms. Use the general formula for alkenes to calculate the number of hydrogen atoms in one molecule of hexene.
Question 40
1 mark · Easy
Answer and see the solution →What is the systematic IUPAC name for an alkane with the following skeletal structure?
Skeletal structure: four carbon chain with a methyl group at position 3.