Boiling point. electrical condutivity. flammability. and malleability. which of the following is a chemical property

Flammibility

Explanation:

Chemical properties are those that refer to the ability of a substance to undergo transformation. For example, flammability is a property that gasoline has. When it burns, its chemical composition changes into new substances. Besides flammability, other examples of chemical properties are: oxidation, reduction and reactivity.

Of the options given in the question, flammability is the only one that represents a chemical property, the other options are physical properties.

if you're asking what comes out, it's steam.