Class 12 Chemistry Metallurgy General Principles and Processes of Isolation of Elements
In the metallurgy of iron, when is added to blast furnace, calcium ion appears as:
(a)
(b)
metallic
(c)
gangue
(d)
slag
Correct answer: (d) 
Solution: In the metallurgy of iron, when is added to blast furnace, calcium ion appears as slag.
Slag is formed in the zone of heat absorption.

Calcium oxide reacts with silica o form calcium silicate - a slag.



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general principles and processes of isolation of elements
metallurgical operations
metallurg
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general principles and processes of isolation of elements
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