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Question

Coagulation of blood takes place by:

A
ferric alum
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B
potash alum
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C
chrom alum
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D
none of these
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Solution

The correct options are
A chrom alum
B potash alum
D ferric alum
Alum in block form can be used as a blood coagulant. Fe3+, Cr5+ and Al3+ coagulates the blood.

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