Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Section
Physical properties
19 practice questions
Practice questions
1–10 of 19
Question 1
1 mark · Easy
Answer and see the solution →State the general formula for alkenes.
Question 2
3 marks · Easy
Answer and see the solution →(a)[1 mark]Describe the physical state of ethene, propene and butene at room temperature.
(b)[2 marks]Explain how the boiling points of these alkenes change as the number of carbon atoms increases.
Question 3
2 marks · Easy
Answer and see the solution →An alkene molecule contains 10 carbon atoms. Calculate the number of hydrogen atoms it contains. Show your working.
Question 4
2 marks · Easy
Answer and see the solution →Explain why propene has a higher boiling point than ethene.
Question 5
3 marks · Easy
Answer and see the solution →Some information about alkenes. Name Number of Hydrogen atoms Ethene 4 Butene 8 Alkene X 12 (a)[2 marks]For each compound, state its molecular formula.
(b)[1 mark]Name alkene X.
Question 6
1 mark · Easy
Answer and see the solution →State the physical state of butene at room temperature.
Question 7
3 marks · Easy
Answer and see the solution →(a)[1 mark]Write the general formula for alkenes.
(b)[1 mark]Write the molecular formula for the alkene with 7 carbon atoms.
(c)[1 mark]How many hydrogen atoms are there in this molecule?
Question 8
2 marks · Easy
Answer and see the solution →The boiling point of ethene is -104°C, and that of propene is -47°C. Calculate the difference in boiling points between these two alkenes.
Question 9
2 marks · Normal
Answer and see the solution →State the general formula for alkenes. Write the molecular formula for the alkene with six carbon atoms.
Question 10
4 marks · Normal
Answer and see the solution →Ethene, propene and butene are alkenes.
(a)[3 marks]Complete the table to show the number of carbon (C) and hydrogen (H) atoms in each alkene.
Alkene Number of C atoms Number of H atoms Ethene 2 Propene Butene (b)[1 mark]State the physical state (solid, liquid or gas) of these alkenes at room temperature.