Question

Describe the preparations of lampblack, coke, and gas carbon.

Answer 1

1. Lampblack

• Soot is produced when items such as oil and wheat are burned.
• Lampblack can be made at home by burning mustard oil with a wick and collecting the soot on a plate.
• Soot is used in the production of kajal and printer ink.

1. Coke

• When coal is heated rapidly in the absence of air, coke is formed.
• Coke is more permeable than coal, making it more active.

1. Gas Carbon

• When a hydrocarbon is heated in the absence of air, gas carbon forms on the walls of the retort.
• Since gas carbon is an excellent conductor of electricity, it is utilized as an electrode.