8.2 Halogens Flashcards
1
Q
Does the boiling point increase or decrease down group 7 and why?
A
Increases downwards
Larger atomic radius means stronger and more London forces
2
Q
Why does reactivity increase up group 7?
A
Less shielding
More nuclear attraction
3
Q
Does electronegativity increase down group 7?
A
No
4
Q
Chlorine gas + water turns to what
(Reaction used in WW1)
A
Hydrochloric acid and chloric acid (HClO)
5
Q
What is a disproportionation reaction?
A
Where the same element is oxidised and reduced
6
Q
What does chlorine gas + 2 sodium hydroxides form
A
NaOCl+ Sodium chloride + water
