Question:

Plumbago crucible is

Show Hint

Plumbago is another name for graphite. Therefore, plumbago crucible means graphite crucible.
  • Lead crucible
  • Graphite crucible
  • Silicon carbide crucible
  • Alumina crucible
Show Solution
collegedunia
Verified By Collegedunia

The Correct Option is B

Solution and Explanation

Plumbago is an old name for graphite. Graphite is a crystalline form of carbon. It has good thermal conductivity, high temperature resistance, and good resistance to thermal shock. Because of these properties, graphite is used for making crucibles. A crucible is a container used for melting metals or heating materials at high temperature. Therefore, a plumbago crucible means a crucible made from graphite. It does not mean lead crucible, although the word plumbago may sound similar to lead-related words. Silicon carbide crucibles and alumina crucibles are different types of crucibles. Hence, the correct answer is: \[ \text{Graphite crucible}. \]
Was this answer helpful?
0
0