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Question

Match Column I with Column II.
Column - IColumn - IIa. Chlorophyll(P) Rhodiumb. Blood pigment(Q) Cobaltc. Wilkinson catalyst(R) Calciumd. VitaminB12(S) Iron(T) Magnesium

A
a - T; b - S; c - P; d - Q
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B
a - S; b - T; c - P; d - Q
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C
a - T; b - S; c - Q; d - R
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D
a - T; b - Q; c - R; d - S
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Solution

The correct option is A a - T; b - S; c - P; d - Q
Chlorophyll, a pigment which provides the green colour to plants, is a magnesium based complex.
Human blood is red in colour due to a pigment called haemoglobin which is an iron based complex.
Wilkinson's Catalyst is [RhCl(PPh3)3] which is visibly a rhodium complex.
Vitamin B12 is also called cobalamin. It has an elaborate structure with cobalt as the central metal atom.

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