The major product obtained in the reaction of oxalic acid with conc, `H_(2)SO_(4)` upon heating are

Options

A. `CO`
B. `SO_(2)`
C. `CO_(2)`
D. `SO_(3)`

Answer

To solve the question regarding the major products obtained from the reaction of oxalic acid with concentrated sulfuric acid upon heating, we can follow these steps:

### Step 1: Understand the Reactants
Oxalic acid has the formula \( \text{C}_2\text{H}_2\text{O}_4 \) and is a dicarboxylic acid. Concentrated sulfuric acid (\( \text{H}_2\text{SO}_4 \)) is a strong acid that acts as both an oxidizing agent and a dehydrating agent.

**Hint:** Identify the chemical formulas of the reactants involved in the reaction.

### Step 2: Analyze the Reaction Conditions
When oxalic acid is heated in the presence of concentrated sulfuric acid, the sulfuric acid will facilitate the dehydration of oxalic acid, leading to the removal of water molecules.

**Hint:** Consider the role of concentrated sulfuric acid in the reaction.

### Step 3: Write the Reaction Equation
The reaction can be represented as follows:
\[ \text{C}_2\text{H}_2\text{O}_4 + \text{H}_2\text{SO}_4 \xrightarrow{\text{heat}} \text{CO} + \text{CO}_2 + \text{H}_2\text{O} \]
In this reaction, oxalic acid decomposes to produce carbon monoxide (\( \text{CO} \)), carbon dioxide (\( \text{CO}_2 \)), and water (\( \text{H}_2\text{O} \)).

**Hint:** Write down the balanced equation to visualize the products formed.

### Step 4: Identify the Major Products
From the reaction, the major products formed are:
- Carbon monoxide (\( \text{CO} \))
- Carbon dioxide (\( \text{CO}_2 \))

Water is also produced, but it is not typically considered a major product in this context.

**Hint:** Focus on the gaseous products when identifying the major products.

### Step 5: Conclusion
Therefore, the major products obtained from the reaction of oxalic acid with concentrated sulfuric acid upon heating are carbon monoxide and carbon dioxide.

**Final Answer:** The major products are carbon monoxide (\( \text{CO} \)) and carbon dioxide (\( \text{CO}_2 \)).