Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Unit
Organic Chemistry
785 practice questions
Topics covered
Practice questions
31–40 of 335 · Normal
Question 31
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 32
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 33
2 marks · Normal
Answer and see the solution →State the number of carbon atoms in a molecule with the code letters 'prop' in its name and give the name of the corresponding alkane.
Question 34
4 marks · Normal
Answer and see the solution →(a)[1 mark]Define organic chemistry.
(b)[1 mark]Give the general formula for alkanes.
(c)[1 mark]State the characteristic feature that distinguishes alkenes from alkanes.
(d)[1 mark]Name the class of compounds with only carbon and hydrogen atoms joined by single covalent bonds.
Question 35
3 marks · Normal
Answer and see the solution →A hydrocarbon has 6 carbon atoms in a straight chain and is an alkane. Calculate the number of hydrogen atoms in one molecule of this compound.
Question 36
3 marks · Normal
Answer and see the solution →Explain how the name but-2-ene shows both the number of carbon atoms and the position of the double bond in the molecule.
Question 37
4 marks · Normal
Answer and see the solution →Table 1 shows the names and code letters for some organic compounds.
Table 1 Name Code letters for chain Number of carbon atoms methane meth butane but pentane pent ethane eth Complete the table by filling in the number of carbon atoms for each compound.
Question 38
1 mark · Normal
Answer and check →Which ending in the name of an organic compound indicates only carbon–carbon single bonds?
- A.ol
- B.ene
- C.ane
- D.one
Question 39
2 marks · Normal
Answer and see the solution →Name the homologous series to which each of the following compounds belongs: (a) CH3CH2CH3 (b) CH2=CH2
Question 40
4 marks · Normal
Answer and see the solution →(a)[1 mark]State the code letter for a six-carbon chain in organic chemistry.
(b)[2 marks]Give the name and molecular formula for the alkane with six carbon atoms.
(c)[1 mark]Explain why the arrangement of atoms may be drawn differently but still represent the same compound.