Chemical Process
Pick out the wrong statement. Iodine value of an oil or fat is

Independent of the type of oil, whether it is drying or non-drying
The number of grams of iodine taken up by 100 gm of oil or fat
A measure of its unsaturation
Helpful in findings its adulteration & its suitability for making soap

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Chemical Process
Presence of sodium tripolyphosphate (an additive) in synthetic detergent

Does not allow redeposition of dirt on the cleaned surface
None of these
Inhibits its corrosive effects
Facilitates its use even in hard water (by sequestering the water-hardening Ca & Mg ions)

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Chemical Process
Use of hydrated lime in water treatment

Is to adjust the pH value
Before filtration, reduces the bacterial load on filters
All of these
After filtration, combats the corrosive-ness of water due to the presence of O₂ & CO₂

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