Chemical Process
Fluorescent dyes are added in detergents to

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

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Chemical Process
The chamber process is

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

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