Question

Pyrolusite is a ore of

• A. Mn
• B. Mg
• C. Hg
• D. Zn

Answer 1

The Correct Option is A

To determine the ore that pyrolusite is, we need to understand its chemical composition and origin.

1. Understanding Pyrolusite:
Pyrolusite is a naturally occurring mineral and an important ore of manganese ($\text{Mn}$). Its chemical formula is $\text{MnO}_2$, which indicates that it is primarily composed of manganese dioxide. Pyrolusite is widely used in the extraction and production of manganese metal and its compounds.

2. Analyzing the Options:
Let us evaluate the given options:

• (1) Mn: Pyrolusite is indeed an ore of manganese, as its primary component is $\text{MnO}_2$.
• (2) Mg: Magnesium ($\text{Mg}$) is not associated with pyrolusite. Magnesium ores include minerals like dolomite ($\text{CaMg(CO}_3\text{)}_2$) and magnesite ($\text{MgCO}_3$).
• (3) Hg: Mercury ($\text{Hg}$) is not related to pyrolusite. Mercury ores include cinnabar ($\text{HgS}$).
• (4) Zn: Zinc ($\text{Zn}$) is not associated with pyrolusite. Zinc ores include sphalerite ($\text{ZnS}$) and smithsonite ($\text{ZnCO}_3$).

3. Conclusion:
Pyrolusite is an ore of manganese ($\text{Mn}$).

Final Answer: ${\text{Mn}} $</p>