Syngas is a mixture of

Options

A. `CO_(2) + H_(2)`
B. `CO + H_(2)`
C. `CO + CO_(2)`
D. `CO + O_(2)`

Explanation

To determine what syngas is a mixture of, we can analyze the options provided in the question.

**Step 1: Understand what syngas is.**
Syngas, or synthetic gas, is primarily known for its composition and its role in various chemical processes. It is mainly used in the production of fuels and chemicals.

**Step 2: Evaluate the options given.**
- **Option A: CO2 + H2** - This combination is not typically referred to as syngas.
- **Option B: CO + H2** - This is a well-known composition of syngas. It consists of carbon monoxide (CO) and hydrogen (H2).
- **Option C: CO + CO2** - While CO2 can be present in some mixtures, this combination does not define syngas.
- **Option D: CO + O2** - This combination does not represent syngas either.

**Step 3: Identify the correct answer.**
Based on the definitions and the common knowledge about syngas, the correct answer is **Option B: CO + H2**.

**Final Answer:**
Syngas is a mixture of CO + H2.

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