Select the correct statement.A. Group I and group II elements are generally extracted by the elctrolysis of aqueous solution of their chlorides.B. Irona is extracted by aluminio-thermic process.C. Calcination and roasting involve heating of concentrated ores above their fusion temperatureD. Lead can be extracted by carbon reduction as welll as self reduction method.

Select the correct statement.A. Group I and group II elements are gene

1.	Select the correct statement.A. Group I and group II elements are generally extracted by the elctrolysis of aqueous solution of their chlorides.B. Irona is extracted by aluminio-thermic process.C. Calcination and roasting involve heating of concentrated ores above their fusion temperatureD. Lead can be extracted by carbon reduction as welll as self reduction method.
Answer» Correct Answer - D

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