CSEC Chemistry · January 2019 · Paper 2 · Question 3(b)(i)
Thermal and catalytic cracking are useful processes in the petrochemical industry.
Define the term 'catalytic cracking'.
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Practise this questionOther parts of this question
- 3(a)(i)State ONE natural source of hydrocarbons and TWO possible uses of Compound A.[3 marks]
- 3(a)(ii)Draw the FULLY DISPLAYED structure of Compound A.[2 marks]
- 3(b)(ii)State the importance of catalytic cracking in petroleum refineries.[1 mark]
- 3(c)(i)Draw a possible FULLY DISPLAYED structural formula of Compound B.[2 marks]
- 3(c)(ii)State ONE physical property common to both Compound A and Compound B.[1 mark]
- 3(d)(i)State which of the two compounds, A or B, reacts with bromine.[1 mark]
- 3(d)(ii)State the colour change that is observed when the reaction occurs.[1 mark]
- 3(d)(iii)Write a balanced chemical equation for the reaction.[2 marks]
More practice: the rest of this paper · more Sources of Hydrocarbon Compounds questions · all CSEC Chemistry past papers