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Question: Answered & Verified by Expert
Most suitable salt which can be used for efficient clotting of blood will be?
ChemistrySurface ChemistryJEE MainJEE Main 2021 (24 Feb Shift 2)
Options:
  • A FeCl3
  • B MgHCO32
  • C FeSO4
  • D NaHCO3
Solution:
1543 Upvotes Verified Answer
The correct answer is: FeCl3

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.

FeCl3 has Fe+3 ions.

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