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Q: How are crystals of fullerenes obtained from soot?
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Are fullerenes solid at room temperature?

Yes, they strongly resemble soot.


What are the appearance of carbon?

Carbon has many forms. Soot, graphite, fullerenes, Buckeyballs, nanotubes, for some examples.


How are fullerenes prepared?

Fullerenes are prepared by vaporizing graphite rod in helium atmosphere. A mixture of fullerenes like C60, C70 etc are formed which are separated by solvent extraction method.C60 is obtained by column chromatography using alumina as the adsorbent and hexane as the solvent.


When do you get yellow soot in the burner flame?

Yellow soot is obtained when the holes of the burner are not clean. The combustion is incomplete. The yellow soot or yellow flame is because of unburnt carbon particles.


Does carbon have a certain color?

Pure carbon comes in three main forms: graphite (which is dark grey), diamond (which is clear and nearly colorless), and fullerenes (black, like soot).


What is obtained after distilling sugar solution?

sugar crystals


How can crystals be obtained from hot concentrated solution of a salt?

by cooling and then filtering


How crystals be obtained from a hot concentrated solution of a salt?

by cooling and then filtering


HOW CAN CRYSTALS BE OBTAINED FROM HOT CONCENTRATED SOLUTION OF SALT?

by cooling and then filtering


How do you remove salt from NaCl solution?

After the evaporation of water sodium chloride crystals are obtained.


How do you separate sugar and water in a scientific way?

Evaporating the water sugar crystals are obtained.


What would happen if an aqueous solution of sugar is heated to dryness?

Crystals of sugar are obtained.