Redox= quiz part 1 with answers
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Iron(II) chloride reacts with Potassium manganate (VII) solution) t is the name of this reaction? Change of iron(II) ion to iron (III) ion
description
Transcript of Redox= quiz part 1 with answers
I ron(I I ) chloride reacts with Potassium manganate (VII ) soluti on)
what is the name of this reaction?
Change of iron(II) ion to iron (III) ion
I ron(I I ) chloride reacts with Potassium manganate (VII ) soluti on)
Write out rough equation first and put arrows to show oxidation
and reduction process
Fe 2+ +MnO4- Fe3+ + Mn2+
oxidation
reduction
I ron(I I ) chloride reacts with Potassium manganate (VII ) soluti on)
what is oxidised
and why?
Iron(II) ion because oxidation Number of iron increase from +2 to +3
Fe 2+ +MnO4- Fe3+ + Mn2+
oxidation
reduction
I ron(I I ) chloride reacts with Potassium manganate (VII ) soluti on)
what is reduced and
why?
Manganate (VII) ion because oxidation Number of manganese Reduced from +7 to +2
Fe 2+ +MnO4- Fe3+ + Mn2+
oxidation
reduction
I ron(I I ) chloride reacts with Potassium manganate (VII ) soluti on)
what is oxidising
agent and why?
Manganate (VII) ion because it oxidise iron(II) to iron(III)
Fe 2+ +MnO4- Fe3+ + Mn2+
oxidation
reduction
I ron(I I ) chloride reacts with Potassium manganate (VII ) soluti on)
what is reducing agent
and why?
Iron(II) ion because it reduce manganate (VII) ions to manganese (II) ions
Fe 2+ +MnO4- Fe3+ + Mn2+
oxidation
reduction
I ron(I I ) chloride reacts with Potassium manganate (VII ) soluti on)
Write half equation for oxidation reaction
Fe 2+ Fe 3+ + e
Fe 2+ +MnO4- Fe3+ + Mn2+
oxidation
reduction
I ron(I I ) chloride reacts with Potassium manganate (VII ) soluti on)
Write half equation for
reduction reaction
MnO4 - + 8H+ + 5e Mn 2+ + 4H2O
Fe 2+ +MnO4- Fe3+ + Mn2+
oxidation
reduction
I ron(I I ) chloride reacts with Potassium manganate (VII ) soluti on)
Write overall equation
5Fe 2+ + MnO4 - + 8H+ 5Fe 3+ + Mn 2+ + 4H2O
MnO4 - + 8H+ + 5e Mn 2+ + 4H2O Fe 2+ Fe 3+ + e5 5 5
what is the name of this reaction?
Change of iron(III) ion to iron (II) ion
I ron(I I I ) chloride reacts with z inc
I ron(I I I ) chloride reacts with z inc
Write out rough equation first and put arrows to show oxidation
and reduction process
Fe 3+ +Zn Fe2+ + Zn2+
reduction
oxidation
I ron(I I I ) chloride reacts with z inc
what is oxidised and
why?
Zinc because oxidation Number of zinc increase from 0 to +2
Fe 3+ +Zn Fe2+ + Zn2+
reduction
oxidation
what is reduced
and why?
Iron(III) ion because oxidation Number of iron Reduced from +3 to +2
I ron(I I I ) chloride reacts z inc
Fe 3+ +Zn Fe2+ + Zn2+
reduction
oxidation
what is oxidising agent and why?
Iron(III) ion because it oxidise zinc to zinc ion
I ron(I I I ) chloride reacts z inc
Fe 3+ +Zn Fe2+ + Zn2+
reduction
oxidation
what is reducing agent and
why?
Zinc because it reduce iron(III) ions to iron (II) ions
I ron(I I I ) chloride reacts z inc
Fe 3+ +Zn Fe2+ + Zn2+
reduction
oxidation
Write half equation for oxidation reaction
Zn Zn 2+ + 2e
I ron(I I I ) chloride reacts z inc
Fe 3+ +Zn Fe2+ + Zn2+
reduction
oxidation
Write half equation for reduction reaction
Fe3+ + e Fe 2+
I ron(I I I ) chloride reacts z inc
Fe 3+ +Zn Fe2+ + Zn2+
reduction
oxidation
I ron(I I I ) chloride reacts z inc
Zn + 2Fe 3+ 2Fe 2+ + Zn 2+
Write overall equation
Fe3+ + e Fe 2+
Zn Zn 2+ + 2e
22 2
what is the name of this reaction?
Displacement of metal
Zinc reacts with copper(I I ) sulphate soluti on
Zn +Cu2+ Zn2+ + Cu
Zinc reacts with copper(I I ) sulphate soluti on
Write out rough equation first and put arrows to show oxidation
and reduction process
oxidation
reduction
what is oxidised and why?
Zinc because oxidation Number of zinc increase from 0 to +2
Zinc reacts with copper(I I ) sulphate soluti on
Zn +Cu2+ Zn2+ + Cu
oxidation
reduction
what is reduced and why?
Copper (II) ion because oxidation Number of copperReduced from +2 to 0
Zinc reacts with copper(I I ) sulphate soluti on
Zn +Cu2+ Zn2+ + Cu
oxidation
reduction
what is oxidising agent and why?
Copper (II) ion because it oxidise zinc to zinc ion
Zinc reacts with copper(I I ) sulphate soluti on
Zn +Cu2+ Zn2+ + Cu
oxidation
reduction
what is reducing agent and why?
Zinc because it reduce copper (II) ions to copper
Zinc reacts with copper(I I ) sulphate soluti on
Zn +Cu2+ Zn2+ + Cu
oxidation
reduction
Write half equation for oxidation reaction
Zn Zn 2+ + 2e
Zinc reacts with copper(I I ) sulphate soluti on
Zn +Cu2+ Zn2+ + Cu
oxidation
reduction
Write half equation for reduction reaction
Cu2+ + 2e Cu
Zinc reacts with copper(I I ) sulphate soluti on
Zn +Cu2+ Zn2+ + Cu
oxidation
reduction
Zinc reacts with copper(I I ) sulphate soluti on
Zn + Cu 2+ Cu + Zn 2+
Write overall equation
Cu2+ + 2e Cu
Zn Zn 2+ + 2e
