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Among the following ions : 1. Cu^(2+)...

Among the following ions :
`1. Cu^(2+) " "2.Ti^(2+) " " Co^(2+) " " 4. Fe^(2+)`
the coloured ions are

A

1,2,3,4

B

1,3,4 only

C

2,3, only

D

1,2 only.

Text Solution

Verified by Experts

The correct Answer is:
B
Colour of a compound is property of unpaired d-electrons.

Since `Cu^(2+), Co^(2+) and Fe^(2+)` contain unpaired electrons, these are coloured ions
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