Question

Statement: To stop bleeding from an injury, ferric chloride can be applied. Which comment about the statement is justified?

विकल्प

• It is not true, ferric chloride is a poison.

• It is true, Fe³⁺ ions coagulate blood which is a negatively charged sol.

• It is not true; ferric chloride is ionic and gets into the blood stream.

• It is true, coagulation takes place because of formation of negatively charged sol with Cl⁻.

Answer 1

It is true, Fe³⁺ ions coagulate blood which is a negatively charged sol.