1) What does the word organic mean in "organic chemistry"? a) natural b) healthy c) food d) contains hydrogen e) contains oxygen f) contains carbon 2) What is the name of this chemical? a) Methane b) Ethane c) Propane d) Butane e) Pentane f) Hexane 3) What is the general formula of an alkane? a) CnH2n b) CnH4n c) CnH2n+4 d) CnH2n+2 e) CNN f) C2H6 4) What are the two products formed from the COMPLETE COMBUSTION of a hydrocarbon? a) Hydrogen and carbon b) sodium and methane c) oxygen and water d) water and carbon dioxide e) chlorine and oxygen f) chlorine and water 5) ___________ is a liquid fossil fuel found in rocks, made mostly of a mixture of hydrocarbons a) Coal b) Natural gas c) Sodium chloride d) Energy e) Ethane f) Crude oil 6) What happens to hydrocarbons as they get longer? a) they get more runny b) they get less viscous c) their boiling point lowers d) they get less flammable 7) What is this a diagram of? a) cracking b) fractional distillation c) fracking d) fictional detecting e) hacking 8) What property of the alkanes in crude oil allow them to be separated by fractional distillation? a) They have different lengths b) they have different viscosities c) they have different boiling points d) they have different flamabilities 9) What happens to bromine water when you add it to an ALKENE? a) it goes brown b) it goes blue c) it goes orange d) it goes cloudy e) it goes clear f) it goes red 10) The process of turning longer alkane molecules into smaller alkanes and alkenes is called...? a) Fractional distillation b) Fracking c) Cracking d) Brapping e) Turning f) Burning 11) You can test how _____ a chemical is by measuring its melting point and comparing it to the expected melting point in a data book. a) Clean b) Pure c) White d) Good e) Round f) Range 12) A _____________ is a useful mixture of chemicals that has been designed for a particular use. a) Mixture b) Substance c) Formulation d) Compound e) Element f) Poltune 13) What required practical do you calculate the Rf value? a) acceleration b) distillation c) fracking d) cracking e) chromatography f) gas tests 14) GAS TEST 1: This gas will BLEACH damp LITMUS PAPER a) Chlorine b) Oxygen c) Carbon Dioxide d) Hydrogen 15) GAS TEST 2: This gas will relight a glowing splint a) Oxygen b) Hydrogen c) Chlorine d) Carbon dioxide 16)  GAS TEST 3: This gas will turn lime water milky a) Oxygen b) Hydrogen c) Carbon dioxide d) Chlorine 17) GAS TEST 4: This gas burns with a squeaky pop a) Oxygen b) Chlorine c) Carbon dioxide d) hydrogen

C2 Organic chemistry

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