Question
Question: Bleeding is stopped by the application of ferric chloride. This is because:...
Bleeding is stopped by the application of ferric chloride. This is because:
A
The blood starts flowing in opposite direction
B
The blood reacts and forms a solid, which seals the blood vessel
C
The blood is coagulated and thus the blood vessel is sealed
D
The ferric chloride seals the blood vessel.
Answer
The blood is coagulated and thus the blood vessel is sealed
Explanation
Solution
Blood is a colloidal solution containing a –ve charge colloidal particle (Albuminoid), bleeding can be stopped by use of alum or FeCl3 solution. The addition of Al3+ or Fe3+ causes coagulation of blood, so bleeding stops.