hard glass is prepared by
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Answer:
hard glass is prepared by fusing a mixture of potassium carbonate, calcium carbonate and silica
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Explanation:
It is prepared by fusing a mixture of potassium carbonate, calcium carbonate and silica. As its name indicates it is very hard and have high melting point. It is also more resistant to action of acids. Uses:- Hard glass is used for making hard glass laboratory apparatus.
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