MCQ
Which one of the following complexes is paramagnetic
- A${[Co{(F)_6}]^{3 + }}$
- B${[Co{({H_2}O)_6}]^{3 + }}$
- C$[Co{F_3}{({H_2}O)_3}]$
- ✓All of these
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Same product $(A)$ will form in both reactions $A$ is

$1$ litre of mixture $X +$ excess of $AgNO_3 \to Y$
$1$ litre of mixture $X +$ excess of $Ba Cl_2 \to Z$
Number of moles of $Y$ and $Z$ respectively are
(At. nos. $Ti = 22,\,Cr = 24,$ $ Mn = 25,\,Ni = 28$)