Metal Ion Tests Flashcards
1
Q
Observation of Fe2+ and NaOH (until excess)
A
Green PPT which is insoluble in XS
May turn brown
2
Q
Effect of adding NaOH until excess to Cu2+
A
Blue PPT which is insoluble in XS
3
Q
Effect of XS NaOH to Fe3+
A
Brown PPT insoluble in XS
4
Q
Al3+ with NaOH added to XS
A
White PPT
dissolves in XS to form colourless solution
5
Q
Fe2+ and NH3 until XS
A
Green PPT
Insoluble in XS
6
Q
Cu2+ and NH3 until XS
A
Blue PPT
Dissolves in excess to form deep blue solution
7
Q
Effect of adding NH3 until excess to Al3+
A
White PPT insoluble in XS
8
Q
Effect of adding Na2CO3 until excess to Fe2+
A
Green PPT
9
Q
Effect of adding Na2CO3 until excess to Cu2+
A
Blue green
10
Q
Effect of adding Na2CO3 until excess to Fe3+
A
Brown PPT
Effervescence
11
Q
Effect of adding Na2CO3 until excess to Al3+
A
White PPT
Effervescence
