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प्रश्न
Why is wood charcoal used in water filters and gas masks?
उत्तर
Due to its high adsorbing capacity, wood charcoal is used as gas masks to adsorb harmful gases. Wood charcoal is porous, that is why it is used to filter water.
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संबंधित प्रश्न
Choose the correct alternative.
A crystalline form of carbon is
Write true or false
Graphite has layers of hexagonal carbon bondings.
Define the Following Term:
Crystal
Write three differences between graphite and diamond.
Choose the correct alternative
Destructive distillation of coal yields
Name the products formed when:
diamond is burnt in air at 900°C.
Tick the most appropriate answer.
Diamond and graphite are
a. metals.
b. organic compounds,
c. alkenes.
d. allotropes.
TRUE \ FALSE
Synthetic diamonds are used for cutting glass and drilling rocks.
TRUE \ FALSE
Pure diamond can occur in several colours.
State the reasons for use of graphite
(i) as a lubricant for heated machine parts,
(ii) as a lining for crucibles used in manufacture of high grade steel,
(iii) as an electrode in electroplating.
