Predict the relative acidic strength among the following:
  `HI, HIO_(4), ICI`

Explanation

To predict the relative acidic strength among HI, HIO₄, and ICl, we can follow these steps:

### Step 1: Understand the Concept of Acidity
Acidity is determined by the ability of a compound to donate a proton (H⁺). The more stable the conjugate base formed after the donation of the proton, the stronger the acid.

### Step 2: Identify the Conjugate Bases
- For HI, the conjugate base is I⁻.
- For HIO₄, the conjugate base is IO₄⁻.
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