AQA A LEVEL CHEMISTRY YEAR 1- ALKENES
QUESTIONS WITH RIGHT ANSWERS .
What,is,an,alkene?,,,ANS,-,An,unsaturated,hydrocarbon
What,is,an,unsaturated,hydrocarbon?,,,ANS,-
,A,compound,containing,only,carbon,and,hydrogen,atoms,and,containing,at,least,one,carbon,carbon,doub
le,bond
What,are,van,der,Waals,forces?,,,ANS,-
,Relatively,weak,intermolecular,forces,caused,by,temporary,dipole,dipole,interaction
What,is,the,general,formula,for,an,alkene?,,,ANS,-,CnH2n
How,would,you,name,an,alkene,given,its,displayed,formula?,,,ANS,-,Identify,the,longest,carbon,chain,
Identify,the,position,of,the,carbon,carbon,double,bond,
Identify,any,side,chains
What,are,structural,isomers?,,,ANS,-
,Molecules,with,the,same,molecular,formula,,but,with,different,a,structural,formula
What,are,stereoisomers?,,,ANS,-
,Molecules,with,the,same,molecular,AND,structural,formula,but,a,different,3D,arrangement,of,their,atom
s,in,space
What,is,E-Z,isomerism?,,,ANS,-,The,highest,priority,groups,are,on,the,same,side,of,the,double,bond
Describe,the,C=C,double,bond,,,ANS,-,Double,covalent,bond
Planar,bond
Area,of,high,electron,density
, How,do,you,assign,the,highest,priority,of,groups,in,E-Z,isomerism?,,,ANS,-
,The,highest,atomic,number,closest,to,the,double,bond,has,the,highest,priority,
If,two,groups,have,e.g.,Only,carbon,and,hydrogen,,then,the,one,with,the,most,carbon,atoms,is,assigned,th
e,highest,priority
What,are,Z,isomers?,,,ANS,-,Molecules,where,the,highest,priority,groups,are,on,the,same,side
What,are,E,isomers?,,,ANS,-,Molecules,where,the,highest,priority,groups,are,on,opposite,sides
What,is,addition,polymerisation?,,,ANS,-
,The,reaction,by,which,alkenes,(or,substituted,alkenes),react,with,other,alkene,(or,substituted,alkene),mo
lecules,to,form,polymers
What,polymer,would,the,monomer,ethene,form?,,,ANS,-,Poly(ethene)
What,is,a,polymer?,,,ANS,-,A,long,chain,of,repeating,monomer,units,joined,together
Why,are,addition,polymers,unreactive?,,,ANS,-,They,lack,the,reactive,carbon-carbon,double,bond
Which,is,an,area,of,high,electron,density
And,so,vulnerable,to,electrophilic,attack
What,is,PVC?,,,ANS,-,Poly(chloroethene)
What,is,PVC,used,for?,,,ANS,-,PVC:,Wellies,,raincoats,,
uPVC:,Drainpipes,,window/door,frames
Electrical,wire,insulation
Describe,PVC,,,ANS,-,A,rigid,plastic
QUESTIONS WITH RIGHT ANSWERS .
What,is,an,alkene?,,,ANS,-,An,unsaturated,hydrocarbon
What,is,an,unsaturated,hydrocarbon?,,,ANS,-
,A,compound,containing,only,carbon,and,hydrogen,atoms,and,containing,at,least,one,carbon,carbon,doub
le,bond
What,are,van,der,Waals,forces?,,,ANS,-
,Relatively,weak,intermolecular,forces,caused,by,temporary,dipole,dipole,interaction
What,is,the,general,formula,for,an,alkene?,,,ANS,-,CnH2n
How,would,you,name,an,alkene,given,its,displayed,formula?,,,ANS,-,Identify,the,longest,carbon,chain,
Identify,the,position,of,the,carbon,carbon,double,bond,
Identify,any,side,chains
What,are,structural,isomers?,,,ANS,-
,Molecules,with,the,same,molecular,formula,,but,with,different,a,structural,formula
What,are,stereoisomers?,,,ANS,-
,Molecules,with,the,same,molecular,AND,structural,formula,but,a,different,3D,arrangement,of,their,atom
s,in,space
What,is,E-Z,isomerism?,,,ANS,-,The,highest,priority,groups,are,on,the,same,side,of,the,double,bond
Describe,the,C=C,double,bond,,,ANS,-,Double,covalent,bond
Planar,bond
Area,of,high,electron,density
, How,do,you,assign,the,highest,priority,of,groups,in,E-Z,isomerism?,,,ANS,-
,The,highest,atomic,number,closest,to,the,double,bond,has,the,highest,priority,
If,two,groups,have,e.g.,Only,carbon,and,hydrogen,,then,the,one,with,the,most,carbon,atoms,is,assigned,th
e,highest,priority
What,are,Z,isomers?,,,ANS,-,Molecules,where,the,highest,priority,groups,are,on,the,same,side
What,are,E,isomers?,,,ANS,-,Molecules,where,the,highest,priority,groups,are,on,opposite,sides
What,is,addition,polymerisation?,,,ANS,-
,The,reaction,by,which,alkenes,(or,substituted,alkenes),react,with,other,alkene,(or,substituted,alkene),mo
lecules,to,form,polymers
What,polymer,would,the,monomer,ethene,form?,,,ANS,-,Poly(ethene)
What,is,a,polymer?,,,ANS,-,A,long,chain,of,repeating,monomer,units,joined,together
Why,are,addition,polymers,unreactive?,,,ANS,-,They,lack,the,reactive,carbon-carbon,double,bond
Which,is,an,area,of,high,electron,density
And,so,vulnerable,to,electrophilic,attack
What,is,PVC?,,,ANS,-,Poly(chloroethene)
What,is,PVC,used,for?,,,ANS,-,PVC:,Wellies,,raincoats,,
uPVC:,Drainpipes,,window/door,frames
Electrical,wire,insulation
Describe,PVC,,,ANS,-,A,rigid,plastic
