Total number of electrons in outermost shell of is
10
8
6
4
As we learnt
Electronic configuration of Se (34) -
-
6 Electron
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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