___ allotrope of carbon acts as a lubricant at high temperatures.

Open in App

Solution

Graphite is soft and acts as a lubricant because bonding between layers of graphite is weak due to which layers slide over each other.

Suggest Corrections

Similar questions

Which allotrope of carbon is also called a solid lubricant?

Answer the following questions.

(a) What is meant by allotrope? Which are the allotropes of carbon?

(b) How is carbon dioxide gas produced in the laboratory?

(d) How is charcoal made?

Q. ___ acts as a lubricant at higher temperatures.

A solid element X has four electrons in the outermost shell of its atom. An allotrope Y of this element is used as a dry lubricant in machinery and also in making pencil leads.
(a) What is element X?
(b) Name the allotrope Y.
(c) State whether allotrope Y is a good conductor or non-conductor of electricity.
(d) Name one use of allotrope Y (other than lubrication and pencil leads)
(e) Name two other allotropes of element X.

Q. We prefer using lubricant like between machine parts operating at high temperatures.

Join BYJU'S Learning Program