Chemical Process
Fluorescent dyes are added in detergents to

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

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Chemical Process
The chamber process is

None of these
Preferred over contact process for producing 98 to 100% H₂SO₄ and various oleums
A batch process for directly producing high strength (98 to 100%) H₂SO₄
Non-catalytic and operates only on pyrites

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