`Na_(2)CO_(3)+Fe_(2)O_(3)rarr A+CO_(2)`, what is A in the reaction ?

Options

A. `NaFeO_(2)`
B. `Na_(2)FeO_(3)`
C. `Fe_(3)O_(4)`
D. `Na_(2)FeO_(4)`

Answer

To solve the question regarding the reaction between sodium carbonate (Na₂CO₃) and ferric oxide (Fe₂O₃), we need to determine the product A formed in the reaction:

**Step 1: Write the reaction.**
The reaction can be written as:
\[ \text{Na}_2\text{CO}_3 + \text{Fe}_2\text{O}_3 \rightarrow A + \text{CO}_2 \]

**Step 2: Identify the type of reaction.**
This is a fusion reaction that occurs at high temperatures (around 1800 to 1900 degrees Celsius). In such reactions, sodium carbonate reacts with ferric oxide to form a new compound.

**Step 3: Determine the possible products.**
When sodium carbonate reacts with ferric oxide, the likely product is sodium ferrite. The chemical formula for sodium ferrite is NaFeO₂.

**Step 4: Write the balanced equation.**
The balanced equation for the reaction can be represented as:
\[ \text{Na}_2\text{CO}_3 + \text{Fe}_2\text{O}_3 \rightarrow 2\text{NaFeO}_2 + \text{CO}_2 \]

**Step 5: Identify compound A.**
From the balanced equation, we can see that the product A is NaFeO₂, which is sodium ferrite.

**Step 6: Conclusion.**
Thus, the compound A formed in the reaction is:
\[ \text{A} = \text{NaFeO}_2 \text{ (sodium ferrite)} \]

### Summary of the Solution:
The product A in the reaction between sodium carbonate and ferric oxide is sodium ferrite, represented by the formula NaFeO₂.

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