
The metallurgical process in which a metal is obtained in a fused state is called:
A. Smelting
B. Roasting
C. Calcination
D. Froth floatation
Answer
162.6k+ views
Hint: In the process of smelting metals are obtained from its ore by a reducing agent. A reducing agent reduces a metal from its oxide to produce molten or fused metal.
Complete Step by Step Answer:
The process of smelting involves heating and melting of the ore, mainly oxide ores. In this process a metal oxide ore is heated and melted in presence of a reducing agent to form fused or molten metal. Here the reducing agent reduces the metal oxide to fused metal and oxidises itself to oxide.
Roasting is defined as a process of heating a sulphide ore in a high temperature and in the presence of air. It is a step in the processing of certain oxide ores. More specifically, the process of roasting often involves gas–solid reactions at a certain temperature to purify metal components.
Calcination is defined as the thermal treatment of a solid chemical compound, mainly carbonate compound of a metal, that is heated at high temperature without melting under restricted supply of ambient oxygen gas. Thus it removes the moisture in a process.
Froth flotation is defined as a process for separating hydrophobic materials from hydrophilic materials.
Thus the correct option is A.
Note: In the process of smelting only low electropositive metals like iron, platinum, lead, cadmium etc are produced in molten state in presence of flux. Flux is generally a cleaning agent.
Complete Step by Step Answer:
The process of smelting involves heating and melting of the ore, mainly oxide ores. In this process a metal oxide ore is heated and melted in presence of a reducing agent to form fused or molten metal. Here the reducing agent reduces the metal oxide to fused metal and oxidises itself to oxide.
Roasting is defined as a process of heating a sulphide ore in a high temperature and in the presence of air. It is a step in the processing of certain oxide ores. More specifically, the process of roasting often involves gas–solid reactions at a certain temperature to purify metal components.
Calcination is defined as the thermal treatment of a solid chemical compound, mainly carbonate compound of a metal, that is heated at high temperature without melting under restricted supply of ambient oxygen gas. Thus it removes the moisture in a process.
Froth flotation is defined as a process for separating hydrophobic materials from hydrophilic materials.
Thus the correct option is A.
Note: In the process of smelting only low electropositive metals like iron, platinum, lead, cadmium etc are produced in molten state in presence of flux. Flux is generally a cleaning agent.
Recently Updated Pages
Fluid Pressure - Important Concepts and Tips for JEE

JEE Main 2023 (February 1st Shift 2) Physics Question Paper with Answer Key

Impulse Momentum Theorem Important Concepts and Tips for JEE

Graphical Methods of Vector Addition - Important Concepts for JEE

JEE Main 2022 (July 29th Shift 1) Chemistry Question Paper with Answer Key

JEE Main 2023 (February 1st Shift 1) Physics Question Paper with Answer Key

Trending doubts
JEE Main 2025 Session 2: Application Form (Out), Exam Dates (Released), Eligibility, & More

JEE Main 2025: Derivation of Equation of Trajectory in Physics

Displacement-Time Graph and Velocity-Time Graph for JEE

Types of Solutions

Degree of Dissociation and Its Formula With Solved Example for JEE

Electric Field Due to Uniformly Charged Ring for JEE Main 2025 - Formula and Derivation

Other Pages
NCERT Solutions for Class 12 Chemistry Chapter 1 Solutions

JEE Advanced Marks vs Ranks 2025: Understanding Category-wise Qualifying Marks and Previous Year Cut-offs

Solutions Class 12 Notes: CBSE Chemistry Chapter 1

NCERT Solutions for Class 12 Chemistry Chapter 6 Haloalkanes and Haloarenes

NCERT Solutions for Class 12 Chemistry Chapter 2 Electrochemistry

Electrochemistry Class 12 Notes: CBSE Chemistry Chapter 2
