oxidising agents Flashcards
1
Q
what are oxidising agents used for
A
to oxidise alcohols (the agent is reduced)
2
Q
what is an example of oxidising agent
A
HOT copper (II) oxide
3
Q
what happens hot copper oxide
A
alcohol vapour passes over the hot copper oxide and is oxidised, the Cu 2+ ions are REDUCED to form copper black to brown colour change
4
Q
another oxidising agents
A
Tollens’ reagent
Fehlings solution
5
Q
what happens to Tollens
A
clear colourless which forms a silver mirror when heated with an aldehyde ( silver ions reduced to silver)
6
Q
what happens to Fehling’s solution
A
BLUE fehlings turns into a birch red precipitate when heated w aldehyde, copper ions reduced to Cu +
