Discussion
The bleeding of a wound is stopped by the application of ferric chloride because_____
Answer: D
Ferric chloride works because it coagulates the blood and so seals the vessels.
Blood is a negatively charged colloidal sol. The trivalent \(\mathrm{Fe^{3+}}\) ion neutralises that charge very efficiently - by the Hardy–Schulze rule, coagulating power rises sharply with the charge on the oppositely charged ion - so the sol clots at once.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development