Olympiad workbook

Exam: Olympiad workbook
Subject: NSEC
Chapter: General Principles and Processes of Isolation of Metals

Olympiad workbook · NSEC · General Principles and Processes of Isolation of Metals

Consider the following statements: (i) Calcination is carried out...

Consider the following statements: (i) Calcination is carried out in absence of air below the melting point of the ore (ii) Roasting and calcination are carried out in presence of flux (iii) Calcination is carried out in limited supply of air above the melting point of the ore (iv) Roasting is carried out in air below the melting point of ore The correct set of statements is

Options

A(i) and (iv)
B(ii) and (iii)
C(i), (iii) and (iv)
D(iii) and (iv)

Correct answer

A. (i) and (iv)

Step-by-step solution

No Solution

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