Question

Why are only glass apparatuses (including the cork) used in laboratory preparation nitric acid?

Answer 1

Hey mate here is your answer;-

Glassware used as laboratory apparatus offers a wide range of containment and transport functions for solutions and other liquids used in laboratories. Most laboratory glassware is manufactured with borosilicate glass, a particularly durable glass that can safely be used to hold chemicals being heated over a flame and to contain acidic or corrosive chemicals. All laboratory glassware should be cleaned immediately following use to prevent chemical residue from congealing or hardening.

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Answer 2

on heating the con sulphur acid and the potassium nitrate nitric acid is formed which is corrosive in nature it destroys the rubber and the cork so the glass apparatus are used