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Main source of lead is galena (PbS). It ...

Main source of lead is galena `(PbS)`. It is converted to Pb by `:`

Self`-` reduction process is `:`

A

`'a'//2M`

B

`'a'M`

C

between `'a'` and `'a//2'M`

D

less than `'a//2'`

Text Solution

Verified by Experts

The correct Answer is:
4
`{:(,2Ag^(+),+,Cu,hArr,Cu2^(+),+,2Ag,),(,b,,,a,,,),("at new "eq^(m),(b+2x)/(2),,,((a-x))/(2),,,[Cu^(2+)]=((a-x))/(2) lt a//2.):}`
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