Question

White phosphorus burns in air spontaneously.

• A. True
• B. False

Answer 1

The correct option is A

True

White phosphorus is highly reactive and has a very low ignition temperature. It spontaneously ignites at about 30 °C in air. So if the room temperature is more than 30 °C, then it would catch fire.

It burns with a white flame producing clouds of white smoke. It is usually stored under water to prevent exposure to air.