The number of electron in outer most shell of Pb
6
5
4
3
As we have learned
Electronic configuration of carbon family -
Group 14 Elements
-
Outter most shel;l has 4 electrons
50 mL of 0.2 M ammonia solution is treated with 25 mL of 0.2 M HCl. If pKb of ammonia solution is 4.75, the pH of the mixture will be : Option: 1 3.75 Option: 2 4.75
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