Chemical Process
The catalyst used in the manufacture of DDT (from chloral and chlorobenzene) is

Ultraviolet light
None of these
Dilute H₂SO₄
Oleum

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Chemical Process
Fluorescent dyes are added in detergents to

None of these
Attain distinctiveness from other brands
Act as tarnish inhibitor for metals like German silver
Act as fabric brightener (by converting ultraviolet light to visible light) thereby improving the whiteness appearance of white fabrics

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