Match the complex ions given in Column I with the colours given in Column II and assign the correct code:

Column I
Column II
P. [Co(NH₃)₆]³⁺
1.Violet
Q. [Ti(H₂O)₆]³⁺
2.Green
R. [Ni(H₂O)₆]²⁺
3.Pale blue
S. (Ni (H₂O)₄ (en)]²⁺ (aq)
4.Yellowish orange

5.Blue

Question

Match the complex ions given in Column I with the colours given in Column II and assign the correct code:

Column I	Column II
P. [Co(NH₃)₆]³⁺	1.Violet
Q. [Ti(H₂O)₆]³⁺	2.Green
R. [Ni(H₂O)₆]²⁺	3.Pale blue
S. (Ni (H₂O)₄ (en)]²⁺ (aq)	4.Yellowish orange
	5.Blue

TestHub · Accepted Answer

Ti(III) aquo is violet, Ni(II) aquo is green and the mixed Ni aqua/en complex pale blue: P->4, Q->1, R->2, S->3. NCERT prints (ii); corrected here to (iv) per Rahul’s ruling.

Chemistry - Coordination Chemistry Question with Solution | TestHub

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