Chemical Process
Thermoplastic materials

Do not soften on application of heat
Are heavily branched molecules
None of these
Are solvent insoluble

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Chemical Process
The chamber process is

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
None of these

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