From the list given below select the correct substance which is most suitable to the statements given : (oxygen, diamond, zinc, graphite, gold)
From the list given below select the correct substance which is most suitable to the statements given : (oxygen, diamond, zinc, graphite, gold)
1. A metal which is brittle.
2. A non-metal which is a good conductor of electricity.
3. The hardest naturally occurring substance.
4. The most ductile metal. 5. A gaseous non-metal.
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