Reaction of carboxylic acids with hydrazoic acid in presence of conc. `H_(2)SO_(4)` gives______with the evolution of `CO_(2)` and _____

Explanation

To solve the question regarding the reaction of carboxylic acids with hydrazoic acid in the presence of concentrated sulfuric acid, we can break down the process step by step.

### Step-by-Step Solution:

1. **Identify the Reactants**:
- The reactants in this reaction are carboxylic acids (RCOOH) and hydrazoic acid (HN3).

2. **Reaction Conditions**:
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