Which statement about alcohol igniting is true in comparison to gasoline?

The statement that alcohol ignites more readily at richer concentrations is accurate. Alcohols, particularly ethanol, have a lower flash point compared to gasoline. The concentration of alcohol and its ability to ignite is closely related to the presence of sufficient oxygen; therefore, when alcohol is mixed with air in a richer concentration, the likelihood of ignition increases due to the better conditions for combustion.

This characteristic is important in various applications, such as in engines that utilize alcohol fuels, where an optimal air-to-fuel ratio is crucial for efficient combustion. The ability of alcohol to ignite at richer concentrations is a key factor in evaluating its use in different environments, especially where fire safety is a concern.

In contrast, gasoline behaves differently, as it tends to ignite more readily at leaner concentrations due to the balance of fuel and air necessary for combustion.