Question

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

• A. NaHCO₃
• B. Mg(HCO₃)₂
• C. FeCl₃
• D. FeSO₄

Hint:

Hardy-Schulze Rule: Higher valency = Faster coagulation. $Al^{3+}>Mg^{2+}>Na^+$ for negative sols.

Answer 1

The Correct Option is C

The question asks for the most suitable salt that can be used for efficient clotting of blood. Let's explore the options and understand why FeCl₃ is the correct answer:

1. Role in Blood Clotting: Blood clotting is a complex process that involves the conversion of fibrinogen to fibrin, which forms a mesh that traps blood cells to form a clot. Certain metal ions like calcium and iron are important in this process.
2. Iron Salts in Clotting: Iron(III) chloride (\text{FeCl}_3) is known to be an effective coagulating agent. It helps in blood coagulation by promoting the cross-linking of fibrin, a critical step in clot formation. This makes it particularly useful in medical settings for controlling bleeding.
3. Analysis of Options:
   • NaHCO₃: Sodium bicarbonate is known as baking soda and primarily acts as a buffering agent. It does not play any direct role in blood clotting.
   • Mg(HCO₃)₂: Magnesium bicarbonate is mostly used in titration and does not have a direct role in blood clotting.
   • FeCl₃: As explained, iron(III) chloride aids in the coagulation of blood.
   • FeSO₄: While iron(II) sulfate is a source of iron supplement, it does not have a significant coagulating effect like FeCl₃.
4. Conclusion: Among the given options, \text{FeCl}_3 is the most suitable salt for efficient blood clotting due to its ability to actively support the coagulation process. Thus, the correct answer is FeCl₃.