Tests for cations Flashcards
1
Q
Flame colour for lithium
A
red
2
Q
Flame colour for sodium
A
golden yellow
3
Q
Flame colour for potassium
A
lilac
4
Q
Flame colour for copper
A
blue-green
5
Q
Flame colour for calsium
A
brick red
6
Q
Test for copper (precipitate)
A
Add NaOH, blue precipiate
7
Q
Test for iron 2+ (precipitate)
A
add NaOH, dirty green precipiate
8
Q
Test for iron 3+ (precipitate)
A
Add NaOH, rusty brown precipiate
9
Q
Test for Ammonia gas
A
turns damp led litmus paper blue
10
Q
test for ammonium
A
add NaOH to give of ammonia gas, then test for ammonia gas
