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Most suitable salt which can be used for efficient clotting of blood will be?

Options

  1. AFeCl 3
  2. BMg HCO 3 2
  3. CFeSO 4
  4. DNaHCO 3

Correct answer

A. FeCl 3

Step-by-step solution

Blood is a negatively charged sol. Blood being a colloidal solution, its coagulation by Hardy-Shuze's law states " Higher the charge on cation higher will be its efficiency to coagulate the colloidal solution" According to Hardy-Schulz's rule, the cation with high charge has high coagulation power. FeCl 3 has Fe + 3 ions.

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