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Chemistry
Alum is often used to stop bleeding from cuts. This is because
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Q. Alum is often used to stop bleeding from cuts. This is because
The p-Block Elements
A
alum is antiseptic
15%
B
alum reacts with blood and forms a complex
18%
C
$Al^{3+}$ ions are highly effective in coagulating negatively charged colloids such as blood, muddy water etc. due to their high charge
65%
D
alum contains $SO^{2-}_4$ ions
3%
Solution:
$Al^{3+}$ ions due to their higher charge are highly effective in coagulating negatively charged colloids such as blood and bleeding is stopped