Name the salt which is mixed with carbon dioxide and calcium carbonate in the manufacturing of glass.

Calcium sulphate

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Sodium bicarbonate

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Sodium carbonate

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Copper sulphate

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Solution

The correct option is C
Sodium carbonate

Washing soda (Sodium carbonate) plays a significant role in the glass industry as it is used as an ingredient for the manufacturing glass. First, a mixture of washing soda, sand or silicon dioxide and calcium carbonate are heated at a very high temperature. Then, it is cooled down very quickly which results in the formation of glass.

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Similar questions

Column (I)	Column (II)
(1) Bleaching powder	(a) Sodium bicarbonate
(2) Baking soda	(b) Sodium carbonate
(3) Washing soda	(c) Calcium oxychloride
(4) Plaster of Paris	(d) Calcium sulphate hemihydrate

Describe giving all practical details, how would you prepare :

(a) copper sulphate crystals from a mixture of charcoal and black copper oxide,

(b) zinc sulphate crystals from zinc dust (powdered zinc and zinc oxide),

(d) Calcium sulphate from calcium carbonate.

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