Chemistry - Complete Pblock- Question with Solution | TestHub
Find the total number of process which involve formation of as one of the product /byproduct
• Down's cell • Dow's sea- water process • Deccon process • Hall Heroult cell • Castner-Kellner cell • Bayer's process • Ostwald process
Answer:
Solution:
The four processes that produce chlorine (Cl₂) as a product or byproduct are:
Down's cell: Electrolysis of molten NaCl yields Na at the cathode and Cl₂ gas at the anode.
Dow's seawater process: Electrolysis of molten MgCl₂ derived from seawater produces Mg metal and Cl₂ gas.
Deacon process: Industrial oxidation of gaseous HCl with oxygen directly generates Cl₂ gas and water.
Castner-Kellner cell: Electrolysis of aqueous NaCl (brine) produces NaOH along with Cl₂ gas at the anode.
The remaining methods (Hall-Heroult, Bayer's, and Ostwald processes) do not involve chlorine chemistry, making the total count 4.
