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Question

Ordinary glass is:

A
Sodium silicate
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B
Calcium silicate
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C
Sodium and calcium silicate
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D
Mixed salt of Na and Ca
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Solution

The correct option is A Sodium silicate
Ordinary glass is sodium silicate glass made by fusing SiO2 with sodium oxide, boron oxide and a trace amount of transition metal oxide. The transition metal oxide is added to impart colour to the glass.

Hence, option A is correct.

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