Question

Which of following is not a property of red phosphorus?

Options

• Insoluble in carbon disulphide

• It does not show chemiluminescence by action of air

• It forms phosphine when treated with hot sodium hydroxide solution

• It is non-poisonous

Answer 1

It forms phosphine when treated with hot sodium hydroxide solution

Explanation:

Red phosphorus has an iron-grey sheen to it. As with carbon disulphide, it has no odour, is non-poisonous, and is insoluble in water. It does not exhibit chemalumiscence due to air action.