Question

Which of the following is an example of a ferro alloy?
A. Magnesium
B. Manganese
C. Zinc
D. Mica

Answer 1

Hint: Ferrous minerals account around three fourth of the total estimation of production of metallic minerals. They give a solid base to the advancement of metallurgical enterprises.

Complete answer: Ferroalloy is a compound of iron consisting of a high proportion of one or more elements significant as a source of different metallic components in the creation of alloy steels. These are weak and unsatisfactory for direct use in creating items, yet they are helpful sources of these components for the alloy steels. Ferroalloys generally have lower dissolving ranges than the unadulterated components and can be consolidated all the more promptly in the molten steel. Ferroalloys are set up from charges of the nonferrous metal, iron or iron metal, coke or coal and are changed by treatment at high temperature in submerged electric furnaces.
Now let us examine the options
Option A - Magnesium is a non-ferrous metal and does not contain iron in its basic form.
Option B - Manganese contains iron in its basic form. It is an example of a ferroalloy.
Option C - Zinc is an example of non-ferrous metal and is used in alloys such as nickel silver, aluminium solder and brass.
Option D - Mica is also an example of non-ferrous metals. It is used mostly in the plastic industry as a reinforcing agent and as also a filler.

Thus, the correct answer is option (B).

Note: The symbol of this ferroalloy is Mn and its atomic number is 25. It is used to deoxidize steel in steel production and also to reduce the octane content in gasoline. It is also used to make clear glass. It is also used in paints and also as filler in dry cell batteries.