Upon addition of excess ammonia a solution containing chromium turns what colour?
Responda
Green
Violet
Purple
Blue
Questão 2
Questão
Which of these are the correct colours for the metal aqua ions listed?
Responda
Cu (II) - Blue Solution
Fe (III) - Green Solution
Cr (III) - Purple Solution
Ni (II) - Blue Solution
Mn (II) - Pale Pink Solution
Zn (II) - White Solution
Fe (II) - Green Solution
Questão 3
Questão
Which of the following transition metals display a change upon the further addition of hydroxide ions (assuming small amounts have already been added)?
Responda
Cu (II)
Cr (III)
Ni (II)
Zn (II)
Fe (II)
Questão 4
Questão
Copper (II) forms a deep blue solution upon addition of excess hydroxide ions.
Responda
True
False
Questão 5
Questão
Which of these is the correct change observed for the transition metal ion listed upon the addition of small amounts of hydroxide ions or ammonia?
Responda
Cu (II) - Blue ppt forms
Fe (III) - Green ppt forms
Fe (II) - Brown ppt forms
Mn (II) - Pink ppt forms
Zn (II) - White ppt redissolves to form colourless solution
Cr (III) - Green ppt forms
Ni (II) - Green ppt forms
Questão 6
Questão
Chromium is the only transition metal to display amphoteric behaviour?
Responda
True
False
Questão 7
Questão
Zn (II) will have how many ammonia groups bonded to it as a complex ion?
Responda
2
4
6
3
Questão 8
Questão
+6 is the most stable ion of Chromium.
Responda
True
False
Questão 9
Questão
Copper is the only transition metal for form +1 ions.
Responda
True
False
Questão 10
Questão
Cu (I) is unstable and will undergo disproportionation in solution.
Responda
True
False
Questão 11
Questão
Cu (I) compounds aren't coloured due to it having a full 3d subshell.
Responda
True
False
Questão 12
Questão
Cisplatin is what shape?
Responda
Tetrahedral
Linear
Square Planar
Octahedral
Trigonal Planar
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