1) Which of the following is an alkane? a) Butene b) Hexanol c) Pentane 2) What is the general formula for an alkane? a) CnH2n b) CnH2n+2 c) CnH3n 3) What is the name of the alkane with the formula C3H8? a) Methane b) Ethane c) Propane 4) What is meant by the term saturated, when applied to hydrocarbons? a) Molecules contain at least one C=C double bond b) All carbon atoms are joined by C-C single bonds c) Molecules contain only carbon and hydrogen atoms 5) What is the name of the process which separates crude oil into simpler mixtures of hydrocarbon compounds? a) Cracking b) Polymerisation c) Fractional Distillation 6) Where in the fractionating column will the longest hydrocarbons condense? a) At the top b) At the middle c) At the bottom 7) Which of the following is an alkene? a) C2H4 b) C4H10 c) C3H8 8) What is produced during the complete combustion of propane? a) Water and carbon b) Carbon and carbon monoxide c) Water and carbon dioxide 9) What is seen when ethene is bubbled through bromine water? a) A colour change from green to red b) A colour change from orange to colourless c) The bromine water goes cloudy 10) Which of these alkanes has the highest boiling point? a) C2H6 b) C3H8 c) C4H10 11) What is the name of the process used to break large hydrocarbons up into smaller more useful ones? a) Cracking b) Fractional Distillation c) Fermenting 12) What two conditions are required for cracking? a) Catalyst b) High temperature c) Low temperature d) Water

Year 11 Hydrocarbons and Cracking Quiz

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