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EDEXCEL IGCSE CHEMISTRY - PAPER 1 QUESTIONS WITH CORRECT ANSWERS RATED A+ 2025/2026

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EDEXCEL IGCSE CHEMISTRY - PAPER 1 QUESTIONS WITH CORRECT ANSWERS RATED A+ 2025/2026

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Uploaded on: November 5, 2025
Number of pages: 8
Written in: 2025/2026
Type: Exam (elaborations)
Contains: Questions & answers

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edexcel igcse chemistry paper 1 questions with c

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EDEXCEL IGCSE CHEMISTRY - PAPER
1 QUESTIONS WITH CORRECT
ANSWERS RATED A+ 2025/2026
Potassiumwmanganatew(VII)wandwwaterw(purplewcolourwspreads),wammoniawandwhydrogenwchlorid
ew(whitewringwformswcloserwtowhydrogenwchloride),wbrominewgaswandwairw(brownwbrominewgaswdiff
uses)w-wCORRECTwANSWERSw3wexperimentswtowshowwdiffusion

4OH-w=wO2w+w2H2Ow+w4E-w-wCORRECTwANSWERSwHalfwequationwforwhydroxidewions

Moveswslowlyw(onwthewsurface),wfizzes,weventuallywdisappearsw-
wCORRECTwANSWERSwLithiumwwithwwaterw-wobservations

Moveswquicklyw(onwthewsurface),wfizzeswrapidly,wmaywignitew-
wCORRECTwANSWERSwSodiumwwithwwaterw-wobservations

Reactswvigorously,wburnswwithwawlilacwflame,wsometimeswexplodesw-
wCORRECTwANSWERSwPotassiumwwithwwaterw-wobservations

Heatwcopperw(inwawtubewandwpasswairwoverwit)w-
wCORRECTwANSWERSwExperimentwtowtestwthewproportionwofwoxygenwinwair

Palewbluew-wCORRECTwANSWERSwSulfurwflamewcolour

Orange/yelloww-wCORRECTwANSWERSwCarbonwflamewcolour

Downwardwdeliveryw(itwiswdenserwthanwair)w-wCORRECTwANSWERSwHowwtowcollectwchlorine

, 2H2Ow+wCaCO3w=wCaCl2w+wH2Ow+wCO2w-
wCORRECTwANSWERSwHowwtowmakewCO2winwawlabw(equation)

Itwiswsolublewinwwaterw-wCORRECTwANSWERSwWhywcanwCO2wbewusedwinwfizzywdrinks?

Platinumwwire,wdipwinwhydrochloricwacid,wholdwinwflamew-
wCORRECTwANSWERSwFlamewtestwwirewtowusew+whowwtowsterilisewit

Sowthewgaswcanwdissolvewandwmakewthewcolourwchangew-
wCORRECTwANSWERSwWhywdoeswlitmuswpaperwneedwtowbewdampwwhenwtestingwawgas?

Hydrochloricwacidw-
wCORRECTwANSWERSwAcidwaddedwtowremovewanywimpuritieswforwthewsulphatewtest

Nitricwacidw-wCORRECTwANSWERSwAcidwaddedwtowremovewanywimpuritieswforwthewhalidewtest

Bleacheswdampwlitmuswpaperwwhitew-wCORRECTwANSWERSwTestwforwchlorine

Awgroupwofworganicwcompoundswthatwcanwallwbewrepresentedwbywthewsamewgeneralwformulaw-
wCORRECTwANSWERSwHomologouswseries

Similarwchemicalwproperties,wawtrendwinwphysicalwpropertiesw(boilingwpoints,wcolour,wviscosity)w-
wCORRECTwANSWERSwMemberswofwthewsamewhomologouswserieswhave...

Awgroupwofwatomswwhichwarewarrangedworwbondedwinwawparticularwwaywandwwhichwdeterminewho
wwanworganicwcompoundwwillwreactw-wCORRECTwANSWERSwFunctionalwgroup

Carbonwtowhydrogenwbondw-wCORRECTwANSWERSwAlkanewfunctionalwgroup

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EDEXCEL IGCSE CHEMISTRY - PAPER 1 QUESTIONS WITH CORRECT ANSWERS RATED A+ 2025/2026

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