Which of one resonating structures of an isocyanide is most stabilizing ?

Explanation

To determine which resonating structure of an isocyanide is the most stabilizing, we can follow these steps:

### Step 1: Understand the Isocyanide Structure
Isocyanides have the general formula R-N≡C, where R is an alkyl or aryl group. The key feature of isocyanides is the presence of a carbon atom that is triple-bonded to a nitrogen atom.

### Step 2: Identify Resonating Structures
Resonating structures are different ways of representing the same molecule, where the arrangement of electrons differs but the arrangement of atoms remains the same. For isocyanides, we can draw several resonating structures, including:
1. R-N≡C (neutral structure)
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