Alum is used for:
ADisinfection
BRemoval of odour and taste
CRemoval of hardness
DCoagulant
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Related Questions:
Which type of glass is used in the manufacture of artificial gems,bulbs, lenses, etc?
The most commonly used thinner in paints
The type of defect is seen when the surface painted surface is too smooth:
.............................paint gets deteriorated when exposed to sun.
It is the liquid substance which hold the ingredient of paint in liquid suspension