The `pK_"ind"` of an indicator is 10.5 For which pH transition range is the indicator most suitable.

Explanation

To determine the pH transition range for an indicator with a given pK_ind value, we can use the following steps:

### Step-by-Step Solution:

1. **Understand the pK_ind**: The pK_ind value of the indicator is given as 10.5. This value is the pKa of the indicator.

2. **Determine the transition range**: The suitable pH transition range for an indicator is typically given by the formula:
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