Fractional Distillation Practice Questions
Question 1
Q1. Knowledge Recall (1 mark)
Define fractional distillation.
Question 2
Q2. Knowledge Recall (1 mark)
Explain why liquids with similar boiling points are difficult to separate.
Question 3
Q3. Application (2 marks)
Describe the process of fractional distillation.
Question 4
Q4. Application (2 marks)
Explain how the height of the fractionating column affects the separation of liquids.
Question 5
Q5. Knowledge Recall (1 mark)
Name two real-world applications of fractional distillation.
Question 6
Q6. Calculations (3 marks)
A mixture of liquids A and B has boiling points of 100°C and 120°C respectively. Calculate the temperature range at which the liquids will boil during fractional distillation.
Question 7
Q7. Application (2 marks)
Explain why fractional distillation is used to extract gasoline from crude oil.
Question 8
Q8. Application (2 marks)
Describe how fractional distillation is used in the production of whisky.
Question 9
Q9. Chemical Equation (3 marks)
Write the chemical equation for the combustion of ethanol.
Question 10
Q10. Application (3 marks)
Explain the advantages and disadvantages of using fractional distillation to separate liquids.