The formula of acidic nitrogen hydride is ………….. .

Answer

To determine the formula of acidic nitrogen hydride, we can follow these steps:

### Step 1: Understand what nitrogen hydrides are
Nitrogen hydrides are compounds that consist of nitrogen and hydrogen. They can vary in their acidity, basicity, and stability.

**Hint:** Remember that nitrogen can form multiple hydrides, and their properties can differ significantly.

### Step 2: Identify the acidic nitrogen hydride
Among the nitrogen hydrides, we need to identify which one is classified as acidic. The most notable acidic nitrogen hydride is hydrazoic acid.

**Hint:** Look for nitrogen hydrides that are known to release protons (H⁺) in solution, indicating their acidic nature.

### Step 3: Determine the formula of hydrazoic acid
Hydrazoic acid is represented by the formula HN₃. This compound can dissociate in solution to release H⁺ ions, confirming its acidic nature.

**Hint:** When looking for the formula, consider the number of nitrogen and hydrogen atoms in the compound.

### Step 4: Write the dissociation reaction
When HN₃ dissociates, it produces H⁺ ions and the azide ion (N₃⁻). This reaction is crucial to understanding its acidic properties.

**Hint:** Remember that the presence of an ion that can accept protons indicates that the compound is acidic.

### Final Answer
The formula of the acidic nitrogen hydride is **HN₃** (hydrazoic acid).

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