Which of the following has the greatest affinity for water: `P_(4)O_(10). Cl_(2)O_(7),I_(2)O_(5)`.

Explanation

To determine which of the compounds \( P_4O_{10} \), \( Cl_2O_7 \), or \( I_2O_5 \) has the greatest affinity for water, we need to analyze their properties as dehydrating agents. Here’s a step-by-step solution:

### Step 1: Understand the concept of affinity for water
Affinity for water refers to how readily a substance can react with water or attract water molecules. Compounds with strong dehydrating properties tend to have a high affinity for water.

**Hint:** Look for compounds known to be dehydrating agents.

### Step 2: Analyze \( P_4O_{10} \)
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