Q.

Ferric chloride is applied to stop bleeding cut because

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a

Fe3+ ion coagulates blood, which is a negatively charged sol

b

Fe3+ ion coagulates blood, which is a positively charged sol

c

Cl- coagulates blood, which is a positively charged sol

d

Cl- ion coagulates blood, which is a negatively charged sol

answer is A.

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Detailed Solution

FeCl3 is an electrolyte that gives Fe3+ and blood contains negatively changed colloid. Hence, it stops bleeding due to coagulation.
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