MCQ
Which of the following is correctly matched?
- A$[Cu(NH_3)_4]^{2+}$ Diamagnetic
- B$[Ni(CN)_4]^{2-}$ Para magnetic
- C$[MnCl_4]^{2-}$ Diamagnetic
- ✓$[Fe(CN)_6]^{4-}$ Diamagnetic
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$\left[\right.$ Given : $K _{ sp }( AgBr )=4.9 \times 10^{-13}$ at $298 K$
$\lambda_{ Ag ^{+}}^0=6 \times 10^{-3} Sm ^2\,mol ^{-1}$
$\lambda_{ Br ^{-}}^0=8 \times 10^{-3} Sm ^2\,mol ^{-1}$
$\left.\lambda_{ NO _3^{-}}^0=7 \times 10^{-3} Sm ^2\,mol ^{-1}\right]$