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Alum is used by dyer:...

Alum is used by dyer:

A

for fire-proofing fabrics

B

as first aid for cuts

C

for softening hard water

D

as mordant

Text Solution

Verified by Experts

The correct Answer is:
D
As a mordant in dye industry. The fabric which is to be dyed is dipped in a solution of the alum and heated with steam.`Al(OH)_(3)`
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