Question

Water gas is a mixture of
A. Carbon dioxide and hydrogen
B. Carbon monoxide and hydrogen

Answer 1

Hint: Water gas produced by passing steam over red-hot coke using the endothermic reaction. Water gas can be filtered, purified, or scrubbed and used to power internal combustion engines, gas turbines, Stirling engines, or fuel cells.

Complete Step by step solution:
A mixture of carbon monoxide and hydrogen produced from passing steam over hot carbon is called water gas. Water gas is a useful product but requires careful handling due to its flammability and the risk of carbon monoxide poisoning.
In the preparation of water gas, superheated steam is passed over white-hot coke and then the mixture of water gas obtained.
Let’s see the reaction of formation of water gas
$C+{{H}_{2}}O\to CO+{{H}_{2}}$
In the above reaction on reactant side carbon (coal) and water (steam) reacted at high temperature and on product side carbon monoxide and hydrogen gas mixture is formed.

According to the above-mentioned details, we can conclude that water gas is a mixture of carbon monoxide and hydrogen hence the correct answer of the given question is option (B) carbon monoxide and hydrogen.

Note: There is a huge chance of confusion between water gas and producer gas. Both water gas and producer gas are mixtures of several gases like hydrogen, nitrogen, carbon monoxide, carbon dioxide, etc. Water gas contains a mixture of carbon monoxide and hydrogen gases. Producer gas contains carbon monoxide and hydrogen gases along with some non-flammable gases such as nitrogen and carbon dioxide. There are few more manufactured gases also available like coal gas, coke oven gas, and carburetted water gas.