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Which of the following types of glasses is also known as hard-glass?

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Which of the following types of glasses is also known as hard-glass?

(a) Potash-lime glass

(b) Soda-lime glass

(c) Potash-lead glass

(d) Common glass

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This interesting question is from Glass in portion Glass, Lime, Clay Products & Bricks of Construction & Building Materials

1 Answer

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Correct option is (a) Potash-lime glass

Easy explanation: Potash-lime glass is also known as hard-glass. It is also called Bohemian-glass. It is used to manufacture combustion tubes and other glass articles which have to withstand high temperatures.

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