Medium
Roasting involves
- AOnly volatilisation of volatile impurities
- BOnly volatilisation of volatile impurities and decomposition of the ore
- CVolatilisation of volatile impurities and decomposition and oxidation of the ore
- DOxidation and reduction of the ore and slag formation
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Similar Questions
Which of the following reactions is an example of roasting?
Giving examples,differentiate between 'roasting' and 'calcination'.
Medium
View SolutionConsider two chemical reactions $(A)$ and $(B)$ that take place during metallurgical processes:
$(A)$ $ZnCO_{3(s)} \longrightarrow ZnO_{(s)} + CO_{2(g)}$
$(B)$ $2ZnS_{(s)} + 3O_{2(g)} \longrightarrow 2ZnO_{(s)} + 2SO_{2(g)}$
The correct names for these processes are:
$(A)$ $ZnCO_{3(s)} \longrightarrow ZnO_{(s)} + CO_{2(g)}$
$(B)$ $2ZnS_{(s)} + 3O_{2(g)} \longrightarrow 2ZnO_{(s)} + 2SO_{2(g)}$
The correct names for these processes are:
DifficultJEE MAIN 2021
View SolutionWhy are sulphide ores converted to oxide before reduction?
Medium
View SolutionWhen limestone is heated,$CO_{2}$ is given off. The metallurgical operation is
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