`Pb` and `Sn` are exerted from their chief ores by:A. Carbon reduction and self reductionB. Self reduction and carbon reductionC. Electrolysis and self reductionD. Self reduction and electrolysis

`Pb` and `Sn` are exerted from their chief ores by:A. Carbon reduction

1.	`Pb` and `Sn` are exerted from their chief ores by:A. Carbon reduction and self reductionB. Self reduction and carbon reductionC. Electrolysis and self reductionD. Self reduction and electrolysis
Answer» Correct Answer - B

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`Pb` and `Sn` are exerted from their chief ores by:A. Carbon reduction and self reductionB. Self reduction and carbon reductionC. Electrolysis and self reductionD. Self reduction and electrolysis

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