Aluminium sulphate (X) is slightly insoluble in water it is converted into soluble sulphate by using `Na_(2)CO_(3)` in the precipitate of sodium carbonate extract .Mole of `Na_(2)CO_(3)` required for complete conversion of `1` mole of (X) into soluble is

Options

A. `1`
B. `2`
C. `3`
D. `4`

Answer

To solve the problem, we need to determine how many moles of sodium carbonate (Na₂CO₃) are required to convert 1 mole of aluminum sulfate (Al₂(SO₄)₃) into a soluble sulfate.

### Step-by-Step Solution:

1. **Identify the Reaction**:
Aluminum sulfate (Al₂(SO₄)₃) is slightly insoluble in water. When it reacts with sodium carbonate (Na₂CO₃), it forms soluble aluminum carbonate and sodium sulfate.

2. **Write the Balanced Chemical Equation**:
The reaction can be represented as follows:
\[ Al_2(SO_4)_3 + 3 Na_2CO_3 \rightarrow 2 Al(OH)_3 + 3 Na_2SO_4 + 3 CO_2 \]
In this reaction, 1 mole of aluminum sulfate reacts with 3 moles of sodium carbonate.

3. **Determine the Moles of Sodium Carbonate Required**:
From the balanced equation, we see that 1 mole of aluminum sulfate (X) requires 3 moles of sodium carbonate (Na₂CO₃) for complete conversion into soluble sulfate.

4. **Conclusion**:
Therefore, the number of moles of sodium carbonate required for the complete conversion of 1 mole of aluminum sulfate (X) into soluble sulfate is **3 moles**.

### Final Answer:
The mole of Na₂CO₃ required for complete conversion of 1 mole of aluminum sulfate (X) into soluble sulfate is **3 moles**.

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