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Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsRefining of crude Metal
Easy

'Softening of lead' means

  • A
    conversion of lead to $PbO$
  • B
    conversion of lead to $Pb_3O_4$
  • C
    removal of impurities (metallic) from lead
  • D
    washing lead with $HNO_3$ followed by alkali solution
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Class 12 Questions

Class 12

Chemistry Questions

Chapter

General Principles and Processes of Isolation of Elements

Subtopic

Refining of crude Metal

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