Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Unit
Organic Chemistry
785 practice questions
Topics covered
Practice questions
21–30 of 317 · Easy
Question 21
1 mark · Easy
Answer and see the solution →In the displayed formula below, what type of bond is shown between the two carbon atoms? C—C
Question 22
3 marks · Easy
Answer and see the solution →Answer the following about the typical bonding in displayed formulae.
(a)[1 mark]State the typical number of bonds formed by a hydrogen atom.
(b)[1 mark]State the typical number of bonds formed by a carbon atom.
(c)[1 mark]State the typical number of bonds formed by an oxygen atom.
Question 23
2 marks · Easy
Answer and see the solution →How many total bonds (lines) should be drawn in the displayed formula of ethane (\ce{C2H6}\))?
Question 24
1 mark · Easy
Answer and see the solution →Give the IUPAC name for the compound with the structural formula CH3CH2CH2CH2OH.
Question 25
3 marks · Easy
Answer and see the solution →The displayed formula of a hydrocarbon is shown below:
(a)[1 mark]State the number of carbon atoms in the molecule.
(b)[1 mark]State the homologous series to which this compound belongs.
(c)[1 mark]What is the IUPAC name of this compound?
Question 26
2 marks · Easy
Answer and see the solution →Explain why the compound with the formula CH3CH2CH=CH2 is named but-1-ene according to IUPAC rules.
Question 27
3 marks · Easy
Answer and see the solution →The table shows the structural formulas of three organic compounds.
Structural formulae of compounds Compound Structural formula A CH3CH2CH2CH3 B CH2=CHCH3 C CH3CH2CH2OH (a)[1 mark]Name compound A using IUPAC rules.
(b)[1 mark]Identify the homologous series for compound B.
(c)[1 mark]State the functional group present in compound C.
Question 28
1 mark · Easy
Answer and see the solution →Write the IUPAC name for the compound with the condensed structural formula CH3COOH.
Question 29
3 marks · Easy
Answer and see the solution →The following compound has the displayed formula:
(a)[1 mark]State the number of carbon atoms in the molecule.
(b)[1 mark]State the homologous series to which this compound belongs.
(c)[1 mark]Give the IUPAC name of this compound.
Question 30
2 marks · Easy
Answer and see the solution →The structural formula of a hydrocarbon is shown below:
Apply IUPAC rules to give the correct name for this compound.