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Who first isolated potassium in 1807 by electrolysing molten caustic potash?
AAntoine Lavoisier
BJons Berzelius
CRobert Bunsen
DHumphry Davy
Answer & Solution
Correct answer: D. Humphry Davy
Humphry Davy electrolysed molten KOH with the voltaic pile and obtained potassium, the first metal isolated by electrolysis.
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