1 P – Block Elements
Match metal ion Column I with colour Column II in the presence of alizarin.
1) A = 1, B = 4, C = 3, D = 2 2) A = 2, B = 1, C = 4, D = 3 3) A = 3, B = 2, C = 1, D = 4 4) A = 2, B = 3, C = 4, D = 1
SOLUTIONS
Alizarin is a red pigment present in madder root, used in dying and gives different colors with different colors i.e. Sr2+→ Pink, Mg2+ → Violet Al3+ → Red, Ba2+ → blue.
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