AQA A-LEVEL CHEMISTRY PAPER 1 20225 - 2026 FF
QUIZZES WITH RIGHT ANSWERS
Define,bond,dissociation,enthalpy,(give,chlorine,as,an,example),,,ANS,-,1-
,the,enthalpy,change,when,1,mole,of,all,bonds,of,the,same,type,in,gaseous,molecules,are,broken
CI2,-->,2CI-
In,Kp,,when,the,questions,says
Nitrogen,and,hydrogen,were,mixed,in,a,1:3,mole,ratio,and,left,to,reach,equilibrium,in,a,flask,at,a,temperat
ure,of,550,K.,
N2(g),+,3H2(g),⇌,2NH3(g),
How,many,moles,are,there,of,N2,and,H2?,x2,,,ANS,-,Nitrogen,=,0.25,moles,
Hydrogen,=,0.75,moles
Platinum,acts,as,a,heterogeneous,catalyst,in,the,reaction,between,ammonia,and,oxygen.,It,provides,an,alt
ernative,reaction,route,with,a,lower,activation,energy.,Describe,the,stages,of,this,alternative,route.,x3,,,A
NS,-,1-,reactants,are,adsorbed,onto,the,surface,of,the,catalyst,(on,active,sites)
2-,here,,bonds,are,formed,and,broken,
3-,then,products,undergo,desorption
When,ammonia,reacts,with,oxygen,,nitrous,oxide,(N2O),can,be,produced,instead,of,NO,Give,an,equation,
for,this,reaction.,,,ANS,-,2NH3,+,2O2,-->,N2O,+,3H2O
Identify,the,s-block,metal,that,has,the,highest,first,ionisation,energy.,,,ANS,-,Beryllium
QUIZZES WITH RIGHT ANSWERS
Define,bond,dissociation,enthalpy,(give,chlorine,as,an,example),,,ANS,-,1-
,the,enthalpy,change,when,1,mole,of,all,bonds,of,the,same,type,in,gaseous,molecules,are,broken
CI2,-->,2CI-
In,Kp,,when,the,questions,says
Nitrogen,and,hydrogen,were,mixed,in,a,1:3,mole,ratio,and,left,to,reach,equilibrium,in,a,flask,at,a,temperat
ure,of,550,K.,
N2(g),+,3H2(g),⇌,2NH3(g),
How,many,moles,are,there,of,N2,and,H2?,x2,,,ANS,-,Nitrogen,=,0.25,moles,
Hydrogen,=,0.75,moles
Platinum,acts,as,a,heterogeneous,catalyst,in,the,reaction,between,ammonia,and,oxygen.,It,provides,an,alt
ernative,reaction,route,with,a,lower,activation,energy.,Describe,the,stages,of,this,alternative,route.,x3,,,A
NS,-,1-,reactants,are,adsorbed,onto,the,surface,of,the,catalyst,(on,active,sites)
2-,here,,bonds,are,formed,and,broken,
3-,then,products,undergo,desorption
When,ammonia,reacts,with,oxygen,,nitrous,oxide,(N2O),can,be,produced,instead,of,NO,Give,an,equation,
for,this,reaction.,,,ANS,-,2NH3,+,2O2,-->,N2O,+,3H2O
Identify,the,s-block,metal,that,has,the,highest,first,ionisation,energy.,,,ANS,-,Beryllium
