Mark Scheme (Results)
October 2020
Pearson Edexcel GCE
In Chemistry (9CH0)
Paper 1: Advanced Inorganic and Physical
Chemistry
,Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We
provide a wide range of qualifications including academic, vocational, occupational and specific
programmes for employers. For further information visit our qualifications websites at
www.edexcel.com or www.btec.co.uk. Alternatively, you can get in touch with us using the
details on our contact us page at www.edexcel.com/contactus.
Pearson: helping people progress, everywhere
Pearson aspires to be the world’s leading learning company. Our aim is to help everyone
progress in their lives through education. We believe in every kind of learning, for all kinds of
people, wherever they are in the world. We’ve been involved in education for over 150 years,
and by working across 70 countries, in 100 languages, we have built an international reputation
for our commitment to high standards and raising achievement through innovation ;in
;education. ;Find ;out ;more ;about ;how ;we ;can ;help ;you ;and ;your ;students ;at:
;www.pearson.com/uk
October ;2020
Publications ; Code ; 9CH0_01_2010_MS
All ;the ;material ;in ;this ;publication ;is ;copyright
© ;Pearson ;Education ;Ltd ;2020
, General ;Marking ; Guidance
All ; ; candidates ; ; must ; ; receive ; ; the ;
; same ;treatment. ; Examiners ;must ;mark ;the ;first
;candidate ;in ;exactly ;the ;same ;way ;as ;they ;mark ;the
;last.
Mark ;schemes ;should ;be ;applied ;positively.
;Candidates ;must ;be ;rewarded ;for ;what ;they ;have
;shown ;they ;can ;do ;rather ;than ;penalised ;for
;omissions.
Examiners ; should ; mark ; according ; to ; the ; mark ; scheme
not ;according ;to ;their ;perception ;of ;where ;the ;grade
;boundaries ;may ;lie.
There ;is ;no ;ceiling ;on ;achievement. ;All ;marks ;on ;the ;mark
scheme ;should ;be ;used ;appropriately.
All ;the ;marks ;on ;the ;mark ;scheme ;are ;designed ;to ;be
;awarded. ;Examiners ;should ;always ;award ;full ;marks ;if
;deserved, ; i.e. ; if ; the ; answer ; matches ; the ; mark
;scheme. ; Examiners ;should ;also ;be ;prepared ;to
;award ;zero ;marks ;if ;the ;candidate’s ;response ;is ;not
;worthy ;of ;credit ;according ;to ;the ;mark ;scheme.
Where ; some ; judgement ; is ; required, ; mark ; schemes ; will
provide ;the ;principles ;by ;which ;marks ;will ;be ;awarded
;and ;exemplification ;may ;be ;limited.
When ; examiners ; are ; in ; doubt ; regarding ; the ; application
of ;the ;mark ;scheme ;to ;a ;candidate’s ;response, ;the ;team
;leader ;must ;be ;consulted.
Crossed ; out ; work ; should ; be ; marked ; UNLESS ; the
candidate ;has ;replaced ;it ;with ;an ;alternative ;response.
October 2020
Pearson Edexcel GCE
In Chemistry (9CH0)
Paper 1: Advanced Inorganic and Physical
Chemistry
,Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We
provide a wide range of qualifications including academic, vocational, occupational and specific
programmes for employers. For further information visit our qualifications websites at
www.edexcel.com or www.btec.co.uk. Alternatively, you can get in touch with us using the
details on our contact us page at www.edexcel.com/contactus.
Pearson: helping people progress, everywhere
Pearson aspires to be the world’s leading learning company. Our aim is to help everyone
progress in their lives through education. We believe in every kind of learning, for all kinds of
people, wherever they are in the world. We’ve been involved in education for over 150 years,
and by working across 70 countries, in 100 languages, we have built an international reputation
for our commitment to high standards and raising achievement through innovation ;in
;education. ;Find ;out ;more ;about ;how ;we ;can ;help ;you ;and ;your ;students ;at:
;www.pearson.com/uk
October ;2020
Publications ; Code ; 9CH0_01_2010_MS
All ;the ;material ;in ;this ;publication ;is ;copyright
© ;Pearson ;Education ;Ltd ;2020
, General ;Marking ; Guidance
All ; ; candidates ; ; must ; ; receive ; ; the ;
; same ;treatment. ; Examiners ;must ;mark ;the ;first
;candidate ;in ;exactly ;the ;same ;way ;as ;they ;mark ;the
;last.
Mark ;schemes ;should ;be ;applied ;positively.
;Candidates ;must ;be ;rewarded ;for ;what ;they ;have
;shown ;they ;can ;do ;rather ;than ;penalised ;for
;omissions.
Examiners ; should ; mark ; according ; to ; the ; mark ; scheme
not ;according ;to ;their ;perception ;of ;where ;the ;grade
;boundaries ;may ;lie.
There ;is ;no ;ceiling ;on ;achievement. ;All ;marks ;on ;the ;mark
scheme ;should ;be ;used ;appropriately.
All ;the ;marks ;on ;the ;mark ;scheme ;are ;designed ;to ;be
;awarded. ;Examiners ;should ;always ;award ;full ;marks ;if
;deserved, ; i.e. ; if ; the ; answer ; matches ; the ; mark
;scheme. ; Examiners ;should ;also ;be ;prepared ;to
;award ;zero ;marks ;if ;the ;candidate’s ;response ;is ;not
;worthy ;of ;credit ;according ;to ;the ;mark ;scheme.
Where ; some ; judgement ; is ; required, ; mark ; schemes ; will
provide ;the ;principles ;by ;which ;marks ;will ;be ;awarded
;and ;exemplification ;may ;be ;limited.
When ; examiners ; are ; in ; doubt ; regarding ; the ; application
of ;the ;mark ;scheme ;to ;a ;candidate’s ;response, ;the ;team
;leader ;must ;be ;consulted.
Crossed ; out ; work ; should ; be ; marked ; UNLESS ; the
candidate ;has ;replaced ;it ;with ;an ;alternative ;response.
