Question

Stainless steel is a very useful material for our life. In stainless steel, iron is mixed with

• A. $\mathrm{Ni}$ and $\mathrm{Cr}$
• B. $\mathrm{Cu}$ and $\mathrm{Cr}$
• C. $\mathrm{Ni}$ and $\mathrm{Cu}$
• D. $\mathrm{Cu}$ and $\mathrm{Au}$

Answer 1

The correct option is A

$\mathrm{Ni}$ and $\mathrm{Cr}$

The explanation for correct option:

Option (A) $\mathrm{Ni}$ and $\mathrm{Cr}$

• Alloys are metal-element mixes whose precise composition is determined by the qualities required.
• Because alloys are metallic in nature, they have high thermal and electrical conductivity.
• Stainless steel is known to remain stainless and resists corrosion due to interactions between the environment and its alloying components.
• This alloy contains Chromium ($\mathrm{Cr}$), Iron ($\mathrm{Fe}$), Silicon ($\mathrm{Si}$), Manganese ($\mathrm{Mn}$), Carbon ($\mathrm{C}$), and, in rare circumstances, rather considerable amounts of Molybdenum ($\mathrm{Mb}$) and Nickel ($\mathrm{Ni}$).
• Chromium is essential in the manufacturing of stainless steel.
• It provides stainless steel toughness and makes it robust. It enhances corrosion resistance, especially at high temperatures.
• Hence, Stainless steel is an alloy of Chromium, and Nickel.

Hence, the correct option is (A).