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Which of the following is not a component of glass?

(a) Sodium chloride

(b) Calcium carbonate

(c) Silica

(d) Sodium carbonate

This question was addressed to me in my homework.

I'd like to ask this question from p-Block Elements in division p-Block Elements of Chemistry – Class 11

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Correct answer is (a) Sodium chloride

Best explanation: Glass is a transparent or translucent amorphous substance, which is obtained by fusion of sodium carbonate or sodium sulphate, calcium carbonate and sand (which is also known as silica), the general formula of glass is Na2O.CaO.6SiO2

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