Question

Which of the following is not a metal?

• A. Copper
• B. Sulfur
• C. Aluminum
• D. Iron

Answer 1

The correct option is B

Sulfur

Explanation for correct option:

B. Sulfur

Metals:

• A metal is a class of substance that has high electrical/thermal conductivity.
• Metals are usually ductile as well as malleable in nature.
• The elements that belong to metals are Copper $\left(\mathrm{Cu}\right)$, Iron$\left(\mathrm{Fe}\right)$ as well as Aluminium $\left(\mathrm{Al}\right)$.

Non-metal in the periodic table:

• The non-metals are the elements that are located on the right side of the periodic table.
• Non-metals can be gases/liquids/solids.
• Elements belonging to non-metals are Carbon$\left(\mathrm{C}\right)$, Sulfur$\left(\mathrm{S}\right)$, or halogens.

Thus, Sulfur is not a metal.

Explanation for incorrect options:

Copper, Aluminium, and Iron are metals while Sulfur is non-metal. Thus, options A, C, and D stand incorrect.

Hence the correct option is B i.e. Sulfur.