Multiple choice general knowledge science & technology

Quartz crystals normally used in quartz clocks etc. is chemically

  1. silicon dioxide

  2. germanium oxide

  3. a mixture of germanium oxide and silicon dioxide

  4. sodium silicate
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A Correct answer
Explanation

Quartz crystals, commonly used in quartz clocks and oscillators, are composed of silicon dioxide (SiO2). This crystalline mineral exhibits the piezoelectric effect, making it ideal for timekeeping applications.

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