Which of the following is water gas shift reaction ?

Options

A. `CO+H_(2)OtoCO_(2)+H_(2)`
B. `C+H_(2)OtoCO`
C. `CO+O_(2)toCO_(2)`
D. `CO+H_(2)toCH_(3)OH`

Answer

To determine which of the following is a water gas shift reaction, we need to understand what the water gas shift reaction entails. Here’s a step-by-step solution:

### Step 1: Define the Water Gas Shift Reaction
The water gas shift reaction is a chemical reaction where carbon monoxide (CO) reacts with water (H2O) to produce carbon dioxide (CO2) and hydrogen gas (H2). The general reaction can be represented as:
\[ \text{CO} + \text{H}_2\text{O} \rightarrow \text{CO}_2 + \text{H}_2 \]

### Step 2: Identify the Reactants and Products
In the water gas shift reaction:
- **Reactants**: Carbon monoxide (CO) and water (H2O)
- **Products**: Carbon dioxide (CO2) and hydrogen gas (H2)

### Step 3: Analyze the Given Options
Assuming we have options to choose from, we need to look for the option that matches the reaction:
\[ \text{CO} + \text{H}_2\text{O} \rightarrow \text{CO}_2 + \text{H}_2 \]

### Step 4: Check Each Option
1. **Option 1**: CO + H2O → CO2 + H2 (This matches the water gas shift reaction)
2. **Option 2**: CE + H2O (This is incorrect as it does not involve CO)
3. **Option 3**: CO2 + H2O (This is incorrect as it does not involve CO)
4. **Option 4**: CH3OH (This is incorrect as it does not involve CO)

### Step 5: Conclusion
The correct answer is **Option 1**: CO + H2O → CO2 + H2, which is the water gas shift reaction.

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