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प्रश्न
Which of the following is not an element ?
विकल्प
graphite
germanium
silica
silicon
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उत्तर
Silica.
Silica is a compound made up of Si (silicon) and O (oxygen) and chemically called Silicon dioxide.
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संबंधित प्रश्न
Select the correct alternative
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- What is the zig-zag movement of X known as ?
- What is causing the zig-zag movement of particles X ?
- Name the scientist who discovered this phenomenon.
- What does this experiment tell us about the nature of liquid Y?
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