GK
GENERAL SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is used for removing air bubbles from glass during its manufacture?
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Arsenous oxide
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Soda ash
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Potassium carbonate
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Feldspar
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Explanation:
Detailed explanation-1: -Arsenous oxide is used for removing air bubbles from glass during its manufacture.
Detailed explanation-2: -The results of the 180-t RH industrial test reveal that bubbles of carbon dioxide are formed by the decarburization reaction of calcium hydrogencarbonate, which effectively removed inclusions from the molten steel.
Detailed explanation-3: -“Bubbles” are air or gas filled cavities within the glass. In the glass making industry, small bubbles were referred to as “seeds” and larger bubbles as “blisters.” Seeds are not likely more than 1/16 inch in diameter which is lesser than bubble diameter.
Detailed explanation-4: -This happens because of refraction.
There is 1 question to complete.