Propene can be converted into propan-2-ol by reaction with steam. Identify a suitable catalyst and an appropriate temperature for this industrial hydration process.

Write a chemical equation for this hydration reaction.

In a laboratory, propan-2-ol can be dehydrated back to propene. What type of reaction is dehydration?

Write a chemical equation for the dehydration of propan-2-ol to form propene.

Propene and propyne can both be burned as fuels. The equations for their complete combustion are:

• Propene: \ [\text{C}_3\text{H}_6 + 4.5\text{O}_2 \rightarrow 3\text{CO}_2 + 3\text{H}_2\text{O}{\char"24}$
• Propyne: \ [\text{C}_3\text{H}_4 + 4\text{O}_2 \rightarrow 3\text{CO}_2 + 2\text{H}_2\text{O}{\char"24}$

Under restricted oxygen supply, incomplete combustion is a significant risk. Suggest why propene is more susceptible to incomplete combustion than propyne per mole of fuel burned.

Name the dangerous gas produced during incomplete combustion and explain why it is toxic to humans.