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8 Terms

1
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Aluminium, Al³⁺

white ppt, soluble in excess, giving a colourless solution # white ppt, insoluble in excess

2
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Ammonium, NH₄⁺

ammonia produced on warming

3
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Calcium, Ca²⁺

white ppt, insoluble in excess # no ppt, or very slight white ppt

4
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Chromium(III), Cr³⁺

green ppt, soluble in excess, giving a grey-green solution # grey-green ppt, insoluble in excess

5
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Copper(II), Cu²⁺

light blue ppt, insoluble in excess # light blue ppt, soluble in excess, giving a dark blue solution

6
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Iron(II), Fe²⁺

green ppt, insoluble in excess, ppt turns brown on standing # green ppt, insoluble in excess

7
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Iron(III), Fe³⁺

red-brown ppt, insoluble in excess # red-brown ppt, insoluble in excess

8
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Zinc, Zn²⁺

white ppt, soluble in excess, giving a colourless solution # white ppt, soluble in excess, giving a colourless solution