Chemical Process
Superior quality laboratory apparatus is made of the __________ glass having low thermal co-efficient of expansion & high chemical resistance.

Flint
Pyrex
Soda
Potash

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Chemical Process
Pasteurisation of milk means

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

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