Question : Quartz is made of which of the following?
Option 1: Calcium sulphite
Option 2: Calcium silicate
Option 3: Sodium sulphate
Option 4: Sodium silicate
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Correct Answer: Sodium silicate
Solution : The correct answer is Sodium silicate.
Sodium silicate is a crystalline compound composed of Sodium, Silicon, and Oxygen atoms. It finds use in a variety of industrial and commercial manufacturing applications, such as detergents, adhesives, etc., as a binder in foundry casting.
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