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Most suitable salt which can be used for efficient clotting of blood will be :
 
Option: 1 FeSO_{4}
Option: 2 Mg(HCO_{3})_{2}
Option: 3 NaHCO_{3}  
Option: 4 FeCl_{3}

Answers (1)

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Blood is a colloidal solution of an albuminoid substance. The styptic action of alum and ferric chloride solution is due to coagulation of blood-forming a clot which stops further bleeding.

Blood is a negative sol. According to hardy-Schulz's rule, the cation with high charge has high coagulation power. Hence, FeCl3 can be used for clotting blood.

Therefore, the correct answer is Option (4).

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sudhir kumar

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