"Displacement reactions also play a key role in extracting metals in the middle of the reactivity series." Justify this statement with two examples.
Why can metals high up in the reactivity series not be obtained by reduction of their oxides by carbon ?
Assertion (A) : Metals in the middle of activity series are found in nature as sulphides or carbonates. Reason (R) : The sulphide ores are calcinated whereas carbonate ores are roasted to extract metals from them.
What chemical process is used for obtaining a metal from its oxide?
A metallurgist heats zinc sulphide in the presence of excess air and notices a white solid forming along with a gas that smells like a burning matchstick.
Write the steps involved in the extraction of pure metals in the middle of the activity series from their carbonate ores.
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