Yr 11 - Redox Reactions Flashcards
1
Q
What is oxidation?
A
Loss of electrons (charge increases)
2
Q
What is reduction?
A
Gain of electrons (charge decreases)
3
Q
Colour of copper (Cu)
A
Red metal
4
Q
Color of Bromine (Br₂)
A
Orange soln
5
Q
Colour of Chlorine (Cl₂)
A
Pale green gas
6
Q
Colour of Chromium ion (Cr³⁺)
A
Green soln
7
Q
Colour of Copper ion (Cu²⁺)
A
Blue soln
8
Q
Colour of Dichromate ion (Cr₂O₇²⁻)
A
Orange soln
9
Q
Colour of Hydrogen and Oxygen (H₂ and O₂)
A
Colourless gas
10
Q
Colour of Iodine (I₂)
A
Yellow/brown soln
11
Q
Colour of Iron II (Fe²⁺)
A
Pale green soln
12
Q
Colour of Iron III (Fe³⁺)
A
Pale orange/brown soln
13
Q
Colour of Nitrogen dioxide NO₂
A
Brown gas
14
Q
Colour of Permangante ion (MnO₄₋)
A
Purple soln
15
Q
Colour of sulphur dioxide (SO₂)
A
Colourless gas
