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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
______ and ______ are the two major crystalline allotropes of carbon.
Write true or false
Diamond is insoluble in all solvents.
State the term:
Substances whose atoms or molecules are arranged in a definite pattern.
Fill in the blank
.............is formed when charcoal is burnt in a limited supply of air.
How is wood charcoal made locally? What other substances are formed in the process.
Give balanced equations for the following chemical reactions:
(a) wood charcoal and cone, nitric acid
(b) coke and steam
(c) wood charcoal and lead monoxide.
TRUE \ FALSE
Coal can be converted to coke by destructive distillation.
Explain the following.
Uses of various allotropes of carbon.
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.
About 18% of the weight of the human body is carbonaAll the allotropic forms of carbon are solids.
