4.2.2 - Redox reactions in group 7 Flashcards
1
Q
What is formed wen a metal reacts with a halogen?
A
A metal halide
2
Q
What is a disproportionation?
A
When an element is oxidised and reduced
3
Q
What are the products when chlorine reacts with cold, dilute sodium hydroxide?
A
NaCl (aq)
NaClO (aq)
H2O (l)
4
Q
What are the products when chlorine reacts with hot, concentrated sodium hydroxide?
A
5NaCl (aq)
NaClO3 (aq)
3H2O (l)
5
Q
colour of chlorine when aq?
A
pale green
6
Q
Colour of bromine when aq?
A
Orange/yellow
7
Q
Colour of iodine when aq?
A
Brown
8
Q
Colour of chlorine in cyclohexane?
A
Pale green
9
Q
Colour of bromine in cyclohexane?
A
Red brown/orange
10
Q
Colour of iodine in cyclohexane?
A
Purple
