ONLINE EXAM (JSS2) -001

A ……. Is not a pure substance

• element

• Compound

• Mixture

• None of the Above

• All of the Above

A ……… is a combination of two or more substances that are not chemically combined.

• mixture

• radiant

• compound

• element

• atom

………… can be separated by any physical process.

• compound

• atoms

• element

• Mixture

• Substance

The following are examples of separation techniques except

• electron

• filtration

• distillation

• Decantation

• evaporation

Distillation is a method of separating ……..

• two solid

• two liquid

• two gases

• all of these

• none of these

In ………. Constituents are present in a fixed ratio

• atom

• mixture

• element

• compound

• decantation

....... can be used to separate metals from nonmetals

• gold

• silver

• magnet

• iron

• none of these

…… is used to separate different dyes in inks

• chromatography

• evaporation

• decantation

• filtration

• distillation

In …… Constituents are present in any ratio

• element

• compound

• mixture

• atom

• proton

Constituents that are combined together chemically is said to be ……

• element

• electron

• compound

• mixture

• all of these