Question

Which among the following alloys contain mercury as one of its constituents?

• A. Stainless steel
• B. Alnico
• C. Solder
• D. Zinc amalgam

Answer 1

The correct option is D

Zinc amalgam

The explanation for correct option

(D)Zinc amalgam

Alloys

• Alloys are referred to as a blend of metals or metals combined with other elements.
• Properties of metals can be enhanced by the addition of certain metals or elements.

Zinc amalgam

• Zinc amalgam is an alloy of zinc used in simple voltaic cells.
• Zinc amalgam is an alloy of mercury with zinc.
• It is an alloy of zinc $\left(90\%\right)$and mercury$\left(10\%\right)$.

The explanation for incorrect option

• Stainless steel is an alloy of iron, chromium, and nickel.
• Alnico is an iron alloy that in addition to iron is composed primarily of aluminum, nickel, and cobalt.
• Solder is a mixture of $63\%$ tin and $37\%$lead.

Mercury is one of its constituents present in zinc amalgam. Hence, options (A), (B), and (C) are incorrect.