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Q. Match the column $I$ with column $II$ and mark the appropriate choice.
Column I Column II
(A) $FeSO_4 \cdot 7H_2O$ (i) Green
(B) $NiCl_2 \cdot 4H_2O$ (ii) Light pink
(C) $MnCl_2 \cdot 4H_2O$ (iii) Pale green
(D) $Co Cl_2 \cdot 6H_2O$ (iv) Pink
(E) $Cu_2Cl_2$ (v) Colourless

The d-and f-Block Elements

Solution:

Correct answer is (d) $(A) \to (iii)$, $(B) \to (i)$, $(C) \to (ii)$, $(D) \to (iv)$, $(E) \to (v)$