What is the first step taken when metals are obtained from sulphide?
Correct answer: A. Smelting
- A. Smelting
- B. Reasing
- C. Reduction
- D. Refining
Explanation
When metals are obtained from sulfide ores, the first step is typically smelting. Smelting involves heating the ore in the presence of a reducing agent to convert the metal sulfide into its corresponding metal oxide. This process is often followed by further steps such as reduction, refining, and other purification processes. However, the initial step in obtaining metals from sulfide ores is usually smelting.
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About Redox Reactions
Redox reactions involve oxidation and reduction occurring together, with electrons transferred between species or oxidation numbers changing. The topic covers assigning oxidation states, identifying oxidizing and reducing agents, balancing redox equations by oxidation number or half-reaction methods, and connecting chemical changes with galvanic and electrolytic cells.
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