A-LEVEL AQA CHEMISTRY • TRANSITION
METALS QUESTIONS WITH ACCURATE
ANSWERS .
Transition,Metal,,,ANS,-Metal,that,can,form,one,or,more,stable,ions,with,a,partially,filled,d,sub-level.
Scandium,isn't,a,TM,because...,,,ANS,-Has,an,empty,d-shell,when,Sc3+
Zinc,isn't,a,TM,because...,,,ANS,-Has,a,full,d-shell,when,Zn2+
Which,2,TM,have,1,electron,in,4s,sub-level,to,give,stability?,,,ANS,-Chromium,and,Copper
Which,sub,levels,electrons,fill,up,first,and,empty,first?,,,ANS,-4s
What,physical,properties,do,they,have?,,,ANS,-High,density
High,melting,and,boiling,points
Similar,ionic,radii
What,chemical,properties,do,they,have?,,,ANS,-Form,complex,ions
Form,coloured,ions
Are,good,catalysts
Can,exist,in,variable,oxidation,states
Complex,ion,,,ANS,-Central,metal,atom/ion,surrounded,by,co-ordinately,bonded,ligands.
Co-ordinate,bond,(Dative,covalent),,,ANS,-
Covalent,bond,in,which,both,electrons,in,the,shared,pair,come,from,the,same,atom.
, Ligand,,,ANS,-
Is,an,atom/ion/molecule,that,donates,a,pair,of,electrons,to,a,central,metal,ion,to,form,a,transition,metal.
Co-ordination,number,,,ANS,-Number,of,co-ordinate,bonds,that,are,formed,with,the,central,metal,ion.
Lewis,Base,,,ANS,-Lone,pair,donor.
Lewis,Acid,,,ANS,-Lone,pair,acceptor.
How,many,small,ligands,like,H20/NH3,can,fit,around,the,central,metal,ion?,,,ANS,-6
How,many,larger,ligands,like,Cl-,can,fit,around,the,central,metal,ion?,,,ANS,-4
Shape,and,bond,angle,of,6,Co-ordinate,bonds,,,ANS,-Octahedral,,90,degrees.
Example,of,6,Co-ordinate,bond,complex,,,ANS,-[Fe(H20)6]2+,(hexaaquairon(ii))
Shape,and,bond,angle,of,4,Co-ordinate,bonds,,,ANS,-Tethrahedral,,109.5,degrees.
Examples,of,4,Co-ordinate,bond,complex,,,ANS,-[CuCl4]2-,and,[CoCl4]2-
Colour,of,[CuCl4]2-,,,ANS,-Yellow
Colour,of,[CoCl4]2-,,,ANS,-Blue
Ni,2+,and,Pt,2+,complexes,have,4,co-ordinate,bonds,with,what,shape,and,angle?,,,ANS,-
Square,planar,,90,degrees.
Shape,and,bond,angle,of,2,Co-ordinate,bonds,,,ANS,-Linear,,180,degrees
METALS QUESTIONS WITH ACCURATE
ANSWERS .
Transition,Metal,,,ANS,-Metal,that,can,form,one,or,more,stable,ions,with,a,partially,filled,d,sub-level.
Scandium,isn't,a,TM,because...,,,ANS,-Has,an,empty,d-shell,when,Sc3+
Zinc,isn't,a,TM,because...,,,ANS,-Has,a,full,d-shell,when,Zn2+
Which,2,TM,have,1,electron,in,4s,sub-level,to,give,stability?,,,ANS,-Chromium,and,Copper
Which,sub,levels,electrons,fill,up,first,and,empty,first?,,,ANS,-4s
What,physical,properties,do,they,have?,,,ANS,-High,density
High,melting,and,boiling,points
Similar,ionic,radii
What,chemical,properties,do,they,have?,,,ANS,-Form,complex,ions
Form,coloured,ions
Are,good,catalysts
Can,exist,in,variable,oxidation,states
Complex,ion,,,ANS,-Central,metal,atom/ion,surrounded,by,co-ordinately,bonded,ligands.
Co-ordinate,bond,(Dative,covalent),,,ANS,-
Covalent,bond,in,which,both,electrons,in,the,shared,pair,come,from,the,same,atom.
, Ligand,,,ANS,-
Is,an,atom/ion/molecule,that,donates,a,pair,of,electrons,to,a,central,metal,ion,to,form,a,transition,metal.
Co-ordination,number,,,ANS,-Number,of,co-ordinate,bonds,that,are,formed,with,the,central,metal,ion.
Lewis,Base,,,ANS,-Lone,pair,donor.
Lewis,Acid,,,ANS,-Lone,pair,acceptor.
How,many,small,ligands,like,H20/NH3,can,fit,around,the,central,metal,ion?,,,ANS,-6
How,many,larger,ligands,like,Cl-,can,fit,around,the,central,metal,ion?,,,ANS,-4
Shape,and,bond,angle,of,6,Co-ordinate,bonds,,,ANS,-Octahedral,,90,degrees.
Example,of,6,Co-ordinate,bond,complex,,,ANS,-[Fe(H20)6]2+,(hexaaquairon(ii))
Shape,and,bond,angle,of,4,Co-ordinate,bonds,,,ANS,-Tethrahedral,,109.5,degrees.
Examples,of,4,Co-ordinate,bond,complex,,,ANS,-[CuCl4]2-,and,[CoCl4]2-
Colour,of,[CuCl4]2-,,,ANS,-Yellow
Colour,of,[CoCl4]2-,,,ANS,-Blue
Ni,2+,and,Pt,2+,complexes,have,4,co-ordinate,bonds,with,what,shape,and,angle?,,,ANS,-
Square,planar,,90,degrees.
Shape,and,bond,angle,of,2,Co-ordinate,bonds,,,ANS,-Linear,,180,degrees
