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Chemistry Part-I

General Principles and Processes of Isolation of Elements

Differentiate between roasting and calcination with examples.

Chemistry Part-I

Class 12

NCERT

Chapter 1: The Solid State

31 questions

Chapter 2: Solutions

54 questions

Chapter 3: Electrochemistry

28 questions

Chapter 4: Chemical Kinetics

40 questions

Chapter 5: Surface Chemistry

27 questions

Chapter 6: General Principles and Processes of Isolation of Elements

30 questions

How can you separate alumina from silica in a bauxite ore associated with silica? Give equations, if any.

Differentiate between roasting and calcination with examples.

How is cast iron different from pig iron?

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Chapter 7: The p-Block Elements

62 questions

Chapter 8: The d-and f-Block Elements

48 questions

Chapter 9: Coordination Compounds

38 questions

Question

Easy

Solving time: 1 mins

Differentiate between roasting and calcination with examples.

Name: Video solution 1: [Solved] Differentiate between roasting and calcination with examples. - Chemistry Part-I
Uploaded: 2023-09-17T14:43:10.000Z
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Description: Video solution 1: [Solved] Differentiate between roasting and calcination with examples. - Chemistry Part-I

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Updated on: Sep 17, 2023

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Chemistry Part-I (NCERT)

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Text solutionVerified

Calcination	Roasting
Ore is heated in absence of air. $F e_{2} O_{3} \cdot x H_{2} O Δ F e_{2} O_{3} + x H_{2} O$ $Z n C O_{3} Δ Z n O + C O_{2}$ $C a C O_{3} \cdot M g C O_{3} Δ C a O + M g O + 2 C O_{2}$	Ore is heated in regular air supply below the melting temperature for metal. $2 Z n S + 3 O_{2} \to 2 Z n O + 2 S O_{2}$ $2 C u - 2 S + 3 O_{2} \to 2 C u_{2} O + 2 S O_{2}$ $2 P b S + 3 O_{2} \to 2 P b O + 2 S O_{2}$
It is used for carbonates and oxide ores.	It is used for sulphide ores.
Moisture and organic impurities are removed.	Volatile impurites are removed as oxides such as $S O_{2}, P_{2} O_{5}, A s_{2} O_{4}$ .

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Question Text	Differentiate between roasting and calcination with examples.
Updated On	Sep 17, 2023
Topic	General Principles and Processes of Isolation of Elements
Subject	Chemistry
Class	Class 12
Answer Type	Text solution:1 Video solution: 1
Upvotes	88
Avg. Video Duration	1 min

Differentiate between roasting and calcination with examples.

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