A) coagulation of negatively charged blood particles by \[F{{e}^{3+}}\] ions
B) coagulation of positively charged blood particles by Cl ions
C) reaction taking place between ferric ions and the haemoglobin forming a complex
D) common element, iron, in both \[FeC{{l}_{3}}\] and haemoglobin.
Correct Answer: A
Solution :
Bleeding due to cut can be stopped by applying \[FeC{{l}_{3}}\] or alum solution. This is due to coagulation of negatively charged colloidal blood particles (albuminoid substance) by positively charged \[F{{e}^{3+}}\] ions. These substances are used as styptic (which check the flow of blood).You need to login to perform this action.
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