The half-life period of a ........... order reaction is ..... initial concentration.

Explanation

To solve the question regarding the half-life period of a reaction of a specific order and its relation to initial concentration, we can break it down step by step.

### Step-by-Step Solution:

1. **Understanding Half-Life**: The half-life of a reaction is the time required for the concentration of a reactant to decrease to half of its initial concentration.

2. **Identify the Order of Reaction**: The order of the reaction (denoted as 'n') plays a crucial role in determining how the half-life depends on the initial concentration.

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