Iodobenzene on heating with copper powder forms dipenyl. The reaction is called_______.

Explanation

To solve the question regarding the reaction of iodobenzene with copper powder forming diphenyl, we can break it down into the following steps:

### Step 1: Identify the Reactants
The reactants in this reaction are iodobenzene (C6H5I) and copper powder (Cu).

**Hint:** Look for the chemical species involved in the reaction.

### Step 2: Understand the Reaction Conditions
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