`Mg_(3)P_(2)` on hydrolysis produces

Options

A. `Mg(OH)_(2)`
B. `MgO`
C. `PH_(3)`
D. `P_(2)O_(3)`

Answer

To solve the question regarding the hydrolysis of \( \text{Mg}_3\text{P}_2 \) (magnesium phosphide), we will follow a systematic approach.

### Step 1: Identify the Reactants
The reactant in this case is magnesium phosphide, \( \text{Mg}_3\text{P}_2 \).

### Step 2: Understand Hydrolysis
Hydrolysis is a chemical reaction involving water. In this context, magnesium phosphide reacts with water.

### Step 3: Write the Reaction
The hydrolysis of magnesium phosphide can be represented as:
\[ \text{Mg}_3\text{P}_2 + \text{H}_2\text{O} \rightarrow \text{Mg(OH)}_2 + \text{PH}_3 \]
Here, magnesium hydroxide (\( \text{Mg(OH)}_2 \)) and phosphine (\( \text{PH}_3 \)) are produced.

### Step 4: Balance the Reaction
To ensure the reaction is balanced, we need to have the same number of each type of atom on both sides of the equation. The balanced equation is:
\[ \text{Mg}_3\text{P}_2 + 6 \text{H}_2\text{O} \rightarrow 3 \text{Mg(OH)}_2 + 2 \text{PH}_3 \]
This shows that 1 molecule of magnesium phosphide reacts with 6 molecules of water to produce 3 molecules of magnesium hydroxide and 2 molecules of phosphine.

### Step 5: Identify the Products
From the balanced equation, the products of the hydrolysis of magnesium phosphide are:
- Magnesium hydroxide (\( \text{Mg(OH)}_2 \))
- Phosphine (\( \text{PH}_3 \))

### Step 6: Conclusion
The question asks what \( \text{Mg}_3\text{P}_2 \) produces upon hydrolysis. The correct products are magnesium hydroxide and phosphine. Among the options provided, magnesium hydroxide is the correct answer.

### Final Answer
Upon hydrolysis, \( \text{Mg}_3\text{P}_2 \) produces \( \text{Mg(OH)}_2 \) (magnesium hydroxide) and \( \text{PH}_3 \) (phosphine).

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