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  4. Main source of lead is PbS. It is converted to Pb by: <img class=img-fluid question-image alt=image src=https://cdn.tardigrade.in/img/question/chemistry/d20877afaa3ae6665b3970a8e7e423a0-.jpeg /> Self-reduction process is:

Q. Main source of lead is PbS. It is converted to Pb by:
image
Self-reduction process is:

 1333  197 General Principles and Processes of Isolation of Elements Report Error

Solution:

Correct answer is (b) Y