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प्रश्न
Name the following:
The best variety of coal.
उत्तर
Anthracite
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संबंधित प्रश्न
Answer the following question
What impurity is present in black diamond?
Fill in the blank
Wood charcoal is a..........conductor of heat and electricity.
Write ‘true’ or ‘false’ against the following statement:
Activated charcoal is a good conductor of electricity.
Why is wood charcoal used in water filters and gas masks?
FILL IN THE BLANK
Graphite is a good conductor of .............
TRUE \ FALSE
Graphite is a poor conductor of electricity.
Name the crystalline forms of carbon.
Explain the following.
Uses of various allotropes of carbon.
Select the appropeiate option of the following statement:
An allotrope of carbon used as a tip for deep boring drills.
About 18% of the weight of the human body is carbonaAll the allotropic forms of carbon are solids.
