Question

The composition of water gas is

• A. \(CO_{(g)}+N_{2_{(g)}}\)
• B. \(CH_{4_{(g)}}\)
• C. CO_(g) + H₂O_(g)
• D. \(CO_{(g)}+H_{2_{(g)}}\)

Answer 1

The Correct Option is D

Composition of Water Gas 

Water gas is a mixture of gases produced by the reaction of carbon with steam at high temperatures. Let's analyze the given options to determine the correct composition of water gas:

Options:

1. Option C: \( \text{CO(g)} + \text{H}_2\text{O(g)} \)
   This option lists the reactants, not the products of the water gas reaction.
2. Option D: \( \text{CO(g)} + \text{H}_2\text{(g)} \)
   This is the correct composition of water gas, consisting of carbon monoxide and hydrogen.
3. Option A: \( \text{CO(g)} + \text{N}_2\text{(g)} \)
   This option incorrectly includes nitrogen, which is not a product of the water gas reaction.
4. Option B: \( \text{CH}_4\text{(k)} \)
   Methane (\( \text{CH}_4 \)) is not the product of the water gas reaction; it is a solid (k) which is not relevant here.

Conclusion:

The correct answer is Option D: \( \text{CO(g)} + \text{H}_2\text{(g)} \), as this correctly identifies the composition of water gas.

Answer 2

Water gas is produced by the reaction of steam (H₂O) with hot carbon (C). The reaction is as follows: 

C(s) + H₂O(g) ⇌ CO(g) + H₂(g) 

This reaction produces carbon monoxide (CO) and hydrogen gas (H₂), which is known as water gas. 

Therefore, the correct composition of water gas is CO_(g) + H_2(g). 

Hence, the correct answer is (D): CO_(g) + H_2(g).