Chemical Process
Pasteurisation of milk means

Killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics
None of these
Removal of fatty and albuminous substance from it
Inhibiting the growth of micro-organisms without killing them

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

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

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