Magnetic moment value of `[Mn(CN)_(6)]^(3-)` ion in `2.8BM` Predict the type of hybridisation and geometry of the ion .

Explanation

To solve the problem regarding the magnetic moment value of the ion \([Mn(CN)_{6}]^{3-}\), we will follow these steps:

### Step 1: Determine the Oxidation State of Manganese
Let the oxidation state of manganese be \(X\). The cyanide ion \((CN^{-})\) has a charge of \(-1\), and since there are 6 cyanide ions, their total contribution to the charge is \(-6\). The overall charge of the complex ion is \(-3\).

Setting up the equation:
\[
X + 6(-1) = -3
...