Chemical Process
In the manufacture of H₂SO₄, vanadium catalyst as compared to platinum catalyst

All of these
Handles lower SO₂ content gas (7 -10% SO₂), thus increasing the capital cost of the plant
Has a longer life and is not poisoned by arsenic
Gives higher conversion efficiency

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Chemical Process
Shaving soaps are

High free alkali soaps having excess of cane sugar and alcohol
None of these
Soft potassium soaps (potassium salt of fatty acid) with free stearic acid to give lather a lasting property
Metalic soaps compounded with frothing agents

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