Chromatography is generally used by

The remaining solid on the filter paper is known as

A. solution

B. stone

C. particles

D. residue

The letter used to identify an element in the periodic table is known as

A. formula

B. idea

C. symbol

D. hint

Iron, cobalt and nickel are metals which are

A. non-magnetic

B. magnetic

C. insulator

D. none of them

Elements that are brittle and cannot be rolled into wires are known as

A. liquid

B. non-elastic

C. non-metal

D. metal

The symbol for silver in the periodic table is

A. Ag

B. Au

C. Al

D. Li