Home
Class 10
PHYSICS
The unwanted earthly impurities like san...

The unwanted earthly impurities like sand, limestone, rocky materials present in an ore are called :

A

Metallurgy

B

Refining

C

Calcination

D

Gangue

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the unwanted earthly impurities present in an ore, we will analyze the provided options step by step. 1. **Understanding the Question**: The question asks for the term that describes unwanted earthly impurities like sand, limestone, and rocky materials found in an ore. 2. **Analyzing the Options**: - **Metallurgy**: This term refers to the branch of science that deals with the extraction of metals from their ores and the study of their properties. It does not specifically refer to impurities. - **Refining**: This is the process of purifying a substance, particularly metals, by removing impurities. While refining involves dealing with impurities, it does not specifically denote the impurities themselves. - **Calcination**: This is a thermal treatment process that involves heating materials in the absence or limited supply of oxygen. It is used to remove volatile substances or impurities but is not a term for the impurities themselves. - **Gangue**: This term specifically refers to the unwanted materials or impurities that are found in ore, such as sand, limestone, and rocky materials. 3. **Conclusion**: Based on the definitions and analysis of the options, the correct answer to the question is **gangue**. ### Final Answer: The unwanted earthly impurities like sand, limestone, rocky materials present in an ore are called **gangue**.
To solve the question regarding the unwanted earthly impurities present in an ore, we will analyze the provided options step by step. 1. **Understanding the Question**: The question asks for the term that describes unwanted earthly impurities like sand, limestone, and rocky materials found in an ore. 2. **Analyzing the Options**: - **Metallurgy**: This term refers to the branch of science that deals with the extraction of metals from their ores and the study of their properties. It does not specifically refer to impurities. - **Refining**: This is the process of purifying a substance, particularly metals, by removing impurities. While refining involves dealing with impurities, it does not specifically denote the impurities themselves. - **Calcination**: This is a thermal treatment process that involves heating materials in the absence or limited supply of oxygen. It is used to remove volatile substances or impurities but is not a term for the impurities themselves. ...
Promotional Banner

Similar Questions

Explore conceptually related problems

Impurities present in ore are called

The impurities present in the ore is called

The impurities present in the ore when mined are called :

The non-protein material present in a conjugated protein is called ........

The bulb - like structures present at the terminals of an axon are called the

Fill in the blanks with the correct choice. The undesired impurities present in the ores are called overset((i))("______") . To remove the volatile impurities from the ore, the overset((ii))("______") process is carried ot Flux combines with non-fusible impurities to form overset((iii))("______") . CaO acts as a overset((iv))("______") flux.

Assertion : Secondary treatement of sewage is also called biological treatment while primary treatment is called physical treatment. Reason : Primary sewage treatment depends only upon sedimentation properties of materials present in sewage and filtration.

The earthly and siliceous impurities which generallty occur with ores are called _____or _____