Multiple choice

Quartz crystal, normally used in quartz clocks is chemically

  1. sodium silicate

  2. silicon dioxide

  3. carbon dioxide

  4. germanium dioxide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Quartz crystals used in timekeeping devices are composed of silicon dioxide (SiO2), also known as silica. The piezoelectric properties of quartz, its ability to generate an electric charge when mechanically stressed and vice versa, make it ideal for maintaining precise oscillation frequencies. This property allows quartz crystals to serve as accurate timing references in clocks, watches, and electronic circuits.

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