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Why does bleeding stop by rubbing moist alum?

Options

  1. AAlum acts as a coagulant and seals the wound.
  2. BAlum induces vasoconstriction, reducing blood flow.
  3. CAlum promotes blood clotting.
  4. DAlum acts as an antiseptic.

Correct answer

A. Alum acts as a coagulant and seals the wound.

Step-by-step solution

Correct Option is : (A) Alum acts as a coagulant and seals the wound.

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