Chemical Process
Rosin soap is added during paper manufacture to

Improve opacity
Impart adhesive properties
None of these
Impart resistance to penetration by liquids

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Chemical Process
The chamber process is

Non-catalytic and operates only on pyrites
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
None of these

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