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 wbody.
wWe wprovide wa wwide wrange wof wqualifications wincluding wacademic, wvocational,
woccupational wand wspecific wprogrammes wfor wemployers. wFor wfurther winformation wvisit
wour wqualifications wwebsites wat wwww.edexcel.com wor wwww.btec.co.uk. wAlternatively,
wyou wcan wget win wtouch wwith wus wusing wthe wdetails won wour wcontact wus wpage wat
wwww.edexcel.com/contactus.
Pearson: whelping wpeople wprogress, weverywhere
Pearson waspires wto wbe wthe wworld’s wleading wlearning wcompany. wOur waim wis wto whelp
weveryone wprogress win wtheir wlives wthrough weducation. wWe wbelieve win wevery wkind wof
wlearning, wfor wall wkinds wof wpeople, wwherever wthey ware win wthe wworld. wWe’ve wbeen
winvolved win weducation wfor wover w150 wyears, wand wby wworking wacross w70 wcountries, win
w100 wlanguages, wwe whave wbuilt wan winternational wreputation wfor wour wcommitment wto
whigh wstandards wand wraising wachievement wthrough winnovation win weducation. wFind wout
wmore wabout whow wwe wcan whelp wyou wand wyour wstudents wat: wwww.pearson.com/uk
October w2020
Publications w Code w 9CH0_01_2010_MS
All wthe wmaterial win wthis wpublication w is wcopyright
© wPearson wEducation wLtd w2020
, General w Marking w Guidance
All w w candidates w w must w w receive w w the
w w same wtreatment. w Examiners wmust wmark wthe
wfirst wcandidate win wexactly wthe wsame wway was wthey
wmark wthe wlast.
Mark wschemes wshould wbe wapplied wpositively.
wCandidates wmust wbe wrewarded wfor wwhat wthey
whave wshown wthey wcan wdo wrather wthan wpenalised
wfor womissions.
Examiners w should w mark w according w to w the w mark w scheme
not waccording wto wtheir wperception wof wwhere wthe
wgrade wboundaries wmay wlie.
There wis wno wceiling won wachievement. wAll wmarks won wthe wmark
scheme wshould wbe wused wappropriately.
All wthe wmarks won wthe wmark wscheme ware wdesigned
wto wbe wawarded. wExaminers wshould walways waward
wfull wmarks wif wdeserved, w i.e. w if w the w answer
w matches w the w mark wscheme. w Examiners wshould
walso wbe wprepared wto waward wzero wmarks wif wthe
wcandidate’s wresponse wis wnot wworthy wof wcredit
waccording wto wthe wmark wscheme.
Where w some w judgement w is w required, w mark w schemes w will
provide wthe wprinciples wby wwhich wmarks wwill wbe
wawarded wand wexemplification wmay wbe wlimited.
When w examiners w are w in w doubt w regarding w the w application
of wthe wmark wscheme wto wa wcandidate’s wresponse, wthe
wteam wleader wmust wbe wconsulted.
Crossed w out w work w should w be w marked w UNLESS w the
candidate whas wreplaced wit wwith wan walternative wresponse.
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 wbody.
wWe wprovide wa wwide wrange wof wqualifications wincluding wacademic, wvocational,
woccupational wand wspecific wprogrammes wfor wemployers. wFor wfurther winformation wvisit
wour wqualifications wwebsites wat wwww.edexcel.com wor wwww.btec.co.uk. wAlternatively,
wyou wcan wget win wtouch wwith wus wusing wthe wdetails won wour wcontact wus wpage wat
wwww.edexcel.com/contactus.
Pearson: whelping wpeople wprogress, weverywhere
Pearson waspires wto wbe wthe wworld’s wleading wlearning wcompany. wOur waim wis wto whelp
weveryone wprogress win wtheir wlives wthrough weducation. wWe wbelieve win wevery wkind wof
wlearning, wfor wall wkinds wof wpeople, wwherever wthey ware win wthe wworld. wWe’ve wbeen
winvolved win weducation wfor wover w150 wyears, wand wby wworking wacross w70 wcountries, win
w100 wlanguages, wwe whave wbuilt wan winternational wreputation wfor wour wcommitment wto
whigh wstandards wand wraising wachievement wthrough winnovation win weducation. wFind wout
wmore wabout whow wwe wcan whelp wyou wand wyour wstudents wat: wwww.pearson.com/uk
October w2020
Publications w Code w 9CH0_01_2010_MS
All wthe wmaterial win wthis wpublication w is wcopyright
© wPearson wEducation wLtd w2020
, General w Marking w Guidance
All w w candidates w w must w w receive w w the
w w same wtreatment. w Examiners wmust wmark wthe
wfirst wcandidate win wexactly wthe wsame wway was wthey
wmark wthe wlast.
Mark wschemes wshould wbe wapplied wpositively.
wCandidates wmust wbe wrewarded wfor wwhat wthey
whave wshown wthey wcan wdo wrather wthan wpenalised
wfor womissions.
Examiners w should w mark w according w to w the w mark w scheme
not waccording wto wtheir wperception wof wwhere wthe
wgrade wboundaries wmay wlie.
There wis wno wceiling won wachievement. wAll wmarks won wthe wmark
scheme wshould wbe wused wappropriately.
All wthe wmarks won wthe wmark wscheme ware wdesigned
wto wbe wawarded. wExaminers wshould walways waward
wfull wmarks wif wdeserved, w i.e. w if w the w answer
w matches w the w mark wscheme. w Examiners wshould
walso wbe wprepared wto waward wzero wmarks wif wthe
wcandidate’s wresponse wis wnot wworthy wof wcredit
waccording wto wthe wmark wscheme.
Where w some w judgement w is w required, w mark w schemes w will
provide wthe wprinciples wby wwhich wmarks wwill wbe
wawarded wand wexemplification wmay wbe wlimited.
When w examiners w are w in w doubt w regarding w the w application
of wthe wmark wscheme wto wa wcandidate’s wresponse, wthe
wteam wleader wmust wbe wconsulted.
Crossed w out w work w should w be w marked w UNLESS w the
candidate whas wreplaced wit wwith wan walternative wresponse.
