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Question
Tick (√) the correct alternative from the choice given for the following statement
The hardest naturally occurring substance
Options
Oxygen
Diamond
Zinc
Graphite
Gold
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Solution
Diamond
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| List I | LIst II | ||
| 1 | Fluorine and chlorine | A | Nitrogen |
| 2 | A diatomic molecule | B | Boron |
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| 4 | A metalloid - showing properties of both metals and non-metals. | D | Chemical Formula |
| 5 | The term used for the substances which take part in the chemical reaction | E | Halogens |
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| 7 | The term used for the substances formed as a result of a chemical reaction | G | Nitric Acid |
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| 1. | Element | Made up of molecules |
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| 3. | Colloid | Settles down on standing |
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