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The ions from among the following which ...

The ions from among the following which are colourless are `:`
`(i)Ti^(+4)" "(ii)Cu^(+1)" "(iii)Co^(+3)" "(iv)Fe^(+2)`

A

`(i)` and `(ii)` only

B

`(i),(ii)` and `(iii)`

C

`(iii)` and `(iv)` only

D

`(ii)` and `(iii)` only

Text Solution

Verified by Experts

The correct Answer is:
1
Colors of transition metal ion is shown due to `d-d` transition.
`Ti^(+4)(3d^(@))` and `Cu^(+1)(3d^(10))` are colourless
`Co^(+3)(3d^(6))` and `Fe^(+2)(3d^(@))` are colourless ions.
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Knowledge Check

  • The colourless ion from among the following is

    A
    `Mn^(2+)`
    B
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    C
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  • Which of the following transition metal ions has least magnetic moments? (i) Ti^(4+) (ii) Cu^(+1) (iii) Co^(3+) (iv) Fe^(2+)

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    i, iv, v
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