The spin only magnetic moment value of `[MnBr_(4)]^(2-)` ion is `5.9BM` On the basis of `VBT` Predict the hybridisation and geometry of `[MnBr_(4)]^(2-)` ion ` .

Explanation

To solve the question regarding the hybridization and geometry of the `[MnBr_(4)]^(2-)` ion based on the given magnetic moment, we can follow these steps:

### Step 1: Determine the Oxidation State of Manganese
Let the oxidation state of manganese (Mn) be \( x \). The bromide ion (Br) has a charge of -1, and since there are 4 bromide ions, the total negative charge contributed by bromine is -4. The overall charge of the complex ion is -2.

Setting up the equation:
\[
x + (-4) = -2
...