Parke's process is used in the extraction of________?
Correct answer: C. Silver
- A. Iron
- B. Sodium
- C. Silver
- D. Zinc
Explanation
Parkes' process extracts silver from lead by adding zinc to molten lead; silver dissolves preferentially in zinc and is then separated. The likely mistake is choosing zinc, because zinc is the agent used in the process, not the valuable metal being extracted.
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About Electronic Structure of d-Block Elements
The electronic structure of d-block elements covers the filling of the (n-1)d and ns orbitals, general electronic configurations, and the exceptions shown by chromium and copper. It explains how partially filled d orbitals produce variable oxidation states, coloured ions, magnetic behaviour and complex formation, while distinguishing transition elements from elements with completely filled d subshells.
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