TRIPLE2 organic 1 Word Scramble
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Question | Answer |
what is a HydroCarbon? | A COMPOUND of Hydrogen and Carbon ONLY, JOINED TOGETHER |
What is the formula for MethAne? (force yourself to write capital letters to avoid the examiner misreading your handwriting!) | CH4 |
CH4 is the formula for a member of which family? | Alkane because the general formula of that hydrocarbon is CnH2n+2 |
C2H4 is the name of which compound? | Ethane |
What is the formula for PropAne? (force yourself to write capital letters to avoid the examiner misreading your handwriting!) | C3H8 |
What is the formula for PropEne? (force yourself to write capital letters to avoid the examiner misreading your handwriting!) | C3H6 |
Which type of Hydrocarbons will make Bromine Water change colour? | Alkenes (remember DEUX: Double alkEne Unsaturated, X for no more colour with Bromine) |
What is the reaction where a long chain alkane breaks down into a shorter chain alkane and an Alkene? | Cracking |
What is a polymer? | A long long long HydroCarbon chain made from many monomers stuck together |
What is a monomer? | A single unit that contains a double bond |
What happens during polymerisation? | The double bond open up and joins another monomer |
What is the monomer that will make Poly(Propene)? | Propene |
(UK) What is the polymer made from ChloroEthene? | PVC! Another name for ChloroEthene is Vinyl Chloride (but you could have said PolyChlorEthEne) |
(UK) What is the monomer that will make PolyTetraFluoroEthene? | TetraFluoroEthene |
(UK) What is Poly(Ethene) used for? | As cling film |
(UK) What is PVC used for? | For window frames |
(UK) What is PTFE used for? | For non-stick saucepans |
(UK) What does biodegradable mean? | Can rot |
(UK) Why should we recycle? | To save natural resources, so that we can use crude oil for other purposes; burning produces toxic gases; there is less and less landfill sites; saves energy |
(UK) Why are plastics not recycled more? | Some plastics are mixtures of plastics and they are difficult to separate; People may not see the point of recyling, they may not understand that resources are running out |
Which compounds are saturated? | Alkanes |
Which compounds are unsaturated? | Alkenes (remember DEUX: Double alkEne Unsaturated, X for no more colour with Bromine) |
How do you draw an AlkAne? | Draw the correct number of carbons in a chain; join them with single links; draw links so that each Carbon has FOUR links (no more, no less) |
How do you draw an AlkEne? | Draw the correct number of carbons in a chain; join TWO carbons with a DOUBLE link; join the other carbons with single links; draw links so that each Carbon has FOUR links (no more, no less) |
What is the mnemotechnic to remember that AlkEnes are Unsaturated? | DEUX: Double Ene Unsaturated X (no more colour) |
What is the chemical test to distinguish between AlkAne and AlkEne? | Bromine water stays ORANGE with an alkane; but goes from Orange to COLOURLESS with an AlkEne |
Describe the cracking experiment | VAPOURS of an AlkAne are passed over a HOT CATALYST |
Write the equation for Decane (C10H22) being cracked into Ethene (C2H4) and a smaller Alkane | C10H22 --> C2H4 + C8H18; the number of carbon must be the same on both sides of the arrow |
Decane (C10H22) can be cracked into 2 EthEne molecules and an AlkAne. What is the formula of the AlkAne? | Write the equation C10H22 --> C2H4 + C2H4 + C6H14; the number of carbon must be the same on both sides of the arrow; The alkane is C6H14 |
Explain why we need to crack long chain alkAnes | TWO REASONS: To get smaller molecules that are more USEFUL (more flammable) and more in DEMAND |
Write the equation for the polymerisation of Ethene | n CH2=CH2 --> -(-CH2-CH2-)-n; did you remember the little n after the bracket; did you remember the n on the reactant side (to balance) |
Write the equation for the reaction between Bromine and Ethene | Br2 + CH2=CH2 --> CH2(Br)-CH2(Br) [please note that the Br in bracket is to show that the Br is BELOW the CH2] |
Why does the colour from orange to colourless (decolourises) during the Unsaturation test? | Bromine (Br2) is orange; but as each Br atom attaches to the double bond, there is no more Bromine (Br2), so the colour disappears |
Write the equation for the reaction between Bromine and PropEne | Br2 + CH3-CH=CH2 --> CH3-CH(Br)-CH2(Br) [please note that the Br in bracket is to show that the Br is BELOW the CH2] |
(UK) Write the equation for the reaction between Steam and PropEne | H2O + CH3-CH=CH2 --> CH3-CH2-CH2-OH OR CH3-CH(OH)-CH2 [please note that the OH in bracket is to show that the OH is BELOW the CH2] |
(UK) Why is there two products formed when PropEne reacts with water? | The OH from the water can join to EITHER carbon frm the double bond |
(UK) What is the name of the product of addition of EthEne with Water? | Ethanol |
(UK) What is the name of the product of addition of PropEne with Water? | PropAnol |
(UK) What is the name of the product of addition of EthEne with Bromine? | DibromoEthAne (the product is a saturated compound so it is an alkAne like chemical) |
(UK) What is the name of the product of addition of PropEne with Bromine? | DibromoPropAne (the product is a saturated compound so it is an alkAne like chemical) |
(UK) What are the conditions used for the addition of Hydrogen onto an AlkEne? | 60C and a Nickel catalyst |
(UK) What are the conditions used for the addition of Water onto an AlkEne? | high temperature, high pressure and a Phosphoric acid catalyst |
Describe the dance/mnemotechnic to help remember how AlkEnes react | First position (double bond ready); Chin up (place the groups at right angles); Open up and join; brackets and n |
(IGCSE) write the equation for the reaction of Methane with Chlorine | CH4 + Cl2 --> CH3Cl + HCl |
(IGCSE) write the equation for the reaction of Butane with Chlorine | C4H10 + Cl2 --> C4H9Cl + HCl |
(IGCSE) what are the conditions for the reaction of Methane with Chlorine | Ultra violet light |
Created by:
ursulinechem2
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