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प्रश्न
Name the following:
A greyish black non- metal that is a good conductor of electricity.
उत्तर
Graphite.
APPEARS IN
संबंधित प्रश्न
State the term:
Different forms of an element found in the same physical state.
Write ‘true’ or ‘false’ against the following statement:
Activated charcoal is a good conductor of electricity.
How is wood charcoal made locally? What other substances are formed in the process.
Name four types of coal with percentage of carbon present in each,with uses.
TRUE \ FALSE
Graphite is a poor conductor of electricity.
Name two crystalline and four amorphous allotropes of carbon.
Compare the structure of the crystal of diamond & graphite with special reference to the reason for diamond being the hardest natural substance while graphite one of the softest. Compare the electrical & thermal conductivity of the two crystalline allotropes of carbon.
‘Wood charcoal – an amorphous aliotrope of carbon reduces heated metallic oxides to metals.’ Give a balanced equation to support the statement.
Name the following:
An allotrope of carbon used for the manufacture of coke.
Select the appropeiate option of the following statement:
An allotrope of carbon used as a tip for deep boring drills.
