Which type of chemical is defined as capable of spontaneous ignition within five minutes of contact with air?

A. Pyrophoric liquid or solid
B. Self-heating chemical
C. Organic peroxide
D. Flammable chemical



Answer :

Final answer:

Pyrophoric materials can spontaneously ignite within minutes of contact with air.


Explanation:

Pyrophoric materials are defined as capable of spontaneous ignition within five minutes of contact with air. Examples of pyrophoric substances include white phosphorus, organometallic compounds, and some alkali metals.


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