GCSE / O Levels Chemistry

Small portions of aqueous potassium iodide and of acidified, aqueous potassium manganate(VII)
were added to four solutions. The colour changes seen are shown in the table.
solution number
potassium iodide
potassium manganate(VII)
1
colourless to red
purple to colourless
2
colourless to red
no change
no change
purple to colourless
4
no change
no change
Which solutions contained an oxidising agent?
A 1 only
B 1 and 2 only
C 1 and 3 only
2 and 4 only
D
3.


Chemical Reactions | 2004 - M/J - 5070/1 | Q22