Everyday Science Mcqs

An active asteroid is discovered near ________ Orbit for the first time in billion years.

by
An active asteroid is discovered near ________ Orbit for the first time in billion years.

A. Saturn
B. Mars
C. Neptune
D. Jupiter

Active asteroid discovered near Jupiters Orbit for the first time in billion years. The Jupiter Trojan asteroids orbit the Sun in two huge swarms, one swarm orbiting ahead of the planet, where 2019 LD2 is present, and the other swarm orbiting behind it.

Carbon,Diamond and Graphite are together called:___________?

by
Carbon,Diamond and Graphite are together called:___________?

A. Allotrope
B. Isomers
C. Isomorphs
D. Isotopes

The term allotrope refers to one or more forms of a chemical element that occur in the same physical state. … Allotropes may display very different chemical and physical properties. For example, graphite and diamond are both allotropes of carbon that occur in the solid state

Which of the following is used as a lubricant?

by
Which of the following is used as a lubricant?

A. Graphite
B. Silica
C. Diamond
D. Iron oxide

Graphite is best suited for lubrication in air. It is a mineral made of loosely bonded sheets of carbon atoms, giving it a slippery texture that makes it a very effective lubricant.