Halogens Flashcards
(9 cards)
1
Q
What group are they?
A
7
2
Q
What is trend in reactivity ?
A
Less reactive down the group
3
Q
Iron wool experiment observation
A
Chlorine = glows brightly straight away
Bromine= glows less brightly than chlorine after seconds
Iodine= glows less brightly than chlorine after minutes
4
Q
What colour does each halogen go after silver nitrate is added?
A
Chloride = white precipitate
Bromide = cream precipitate
Iodide = yellow precipitate
5
Q
Displacement reactions reactivity =
A
Chlorine displaces bromine and iodine from their solutions. Bromide displaces iodine.
6
Q
A
7
Q
Chloride + silver nitrate = ?
A
White precipitate
8
Q
Bromide + silver nitrate = ?
A
Cream precipitate
9
Q
Iodide + silver nitrate = ?
A
Yellow precipitate
