Tests For Cations Flashcards
1
Q
Flame tests to identify metal ions
A
Lithium crimson red flame
Sodium yellow orange flame
Potassium lilac flame
Calcium brick red flame
2
Q
Some metals form a coloured precipitate with NaOH
A
Copper 2+ blue
Iron 2+ sludgy green
Iron 3+ reddish brown
3
Q
Ammonium compound + NaOH gives off stinky dangerous ammonia
A
Ammonia harmful for eyes
Test for ammonia NH3 gas using damp red litmus paper
Paper turns blue
Ammonium NH4+
