Cations ( Direct ) Flashcards
1
Q
Transition metals are ____ solutions
A
Coloured
2
Q
Al3+
A
NaOH white ppte soluble
NH3 white ppte insoluble
3
Q
Ca2+
A
NaOH white ppte insoluble
NH3 no ppte
4
Q
Cr 3+
A
NaOH green ppte soluble
NH3 green ppte insoluble
5
Q
Cu 2+
A
NaOH pale blue ppte insoluble
NH3 pale boue ppte dissolves to form deep blue ppte
6
Q
Fe 2+
A
NaOH pale green ppte insoluble
NH3 pale green ppte insoluble
7
Q
Fe 3+
A
NaOH reddish brown ppte insoluble
NH3 reddish brown ppte insoluble
8
Q
Zn 2+
A
NaOH white ppte soluble
NH3 white ppte insoluble
9
Q
NH4+
A
Ammonia gas evolves on warming
