Oxalic acid is heated with concentrated `H_(2)SO_(4)` When the resultant gases are passed over red hot carbon, X is obtained 'X' is

Options

A. `CO`
B. `CH_(4)`
C. `CO_(2)`
D. `C_(2)H_(4)`

Explanation

To solve the problem, we will follow these steps:

### Step 1: Identify the formula of Oxalic Acid
Oxalic acid is represented by the formula \( H_2C_2O_4 \).

### Step 2: Understand the reaction with concentrated \( H_2SO_4 \)
When oxalic acid is heated with concentrated sulfuric acid (\( H_2SO_4 \)), it undergoes dehydration and decomposition, producing carbon monoxide (CO) and carbon dioxide (CO₂) as gases.

### Step 3: Write the reaction
The reaction can be summarized as follows:
\[ H_2C_2O_4 \xrightarrow{H_2SO_4} CO + CO_2 + H_2O \]

### Step 4: Pass the resultant gases over red hot carbon
The resultant gases from the above reaction are CO and CO₂. When these gases are passed over red hot carbon, the carbon dioxide (CO₂) can be reduced to carbon monoxide (CO) by the carbon.

The reaction can be represented as:
\[ CO_2 + C \rightarrow 2CO \]

### Step 5: Identify the final product 'X'
After passing the gases over red hot carbon, the final product obtained is carbon monoxide (CO). Therefore, 'X' is \( CO \).

### Final Answer
X is \( CO \).

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