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Among the following the compound that is...

Among the following the compound that is both paramagnetic and coloured is

A

`K_(2)Cr_(2)O_(7)`

B

`(NH_(4))_(2) [TiCl_(6)]`

C

`VOSO_(4)`

D

`K_(3) [Cu(CN)_(4)]`

Text Solution

Verified by Experts

The correct Answer is:
C
(a) `Cr_(2) O_(7)^(2-) Cr^(+6)` is `d^(0)`
(b) `2 xx 1 + x + 6 xx - 1 = 0`
`x = 4`
`Ti^(4+)` is `d^(0)`
(c ) `x - 2 - 2 = 0`
`x = 4` `V^(4+)`
is `d^(1)`
(d) `3 xx 1 + x + 4 xx - 1 = 0`
`x = + 1`
`Cu^(+)` is `d^(10)`
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