MCQ
Match the complex ions given in Column $I$ with the colours given in Column $II$ and assign the correct code:
 
Column $I ($Complex ion$)$
 
Column $II ($Colour$)$
$a.$ $[Co(NH_3)_6]^{3+}$ $1.$
Violet
$b.$ $[Ti(H_2O)_6]^{3+}$ $2.$
Green
$c.$ $[Ni(H_2O)_6]^{2+}$ $3.$
Pale blue
$d.$ $[Ni(H_2O)_4(en)]^{2+} (aq)$ $4.$
Yellowish orange
 
 
$5.$
Blue
Code:
  • A
    $\text{A (1), B (2), C (4), D (5).}$
  • B
    $\text{A (4), B (3), C (2), D (1).}$
  • C
    $\text{A (3), B (2), C (4), D (1).}$
  • $\text{A (4), B (1), C (2), D (3).}$

Answer

Correct option: D.
$\text{A (4), B (1), C (2), D (3).}$
 
Column $I ($Complex ion$)$
 
Column $II ($Colour$)$
$a.$ $[Co(NH_3)_6]^{3+}$ $4.$
Yellowish orange
$b.$ $[Ti(H_2O)_6]^{3+}$ $1.$
Violet
$c.$ $[Ni(H_2O)_6]^{2+}$ $2.$
Green
$d.$ $[Ni(H_2O)_4(en)]^{2+} (aq)$ $3.$
Pale blue

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