A) \[5.2\text{ }\times {{10}^{6}}\]Coulomb
B) \[2.894\times {{10}^{5}}\]Coulomb
C) \[6.6\times {{10}^{6}}\]Coulomb
D) \[8.2\times {{10}^{6}}\]Coulomb
Correct Answer: B
Solution :
One ion carries \[3\times 1.6\times {{10}^{-19}}\]coulomb Then 1 gm ion \[{{N}^{3-}}\] (1 mole) carries \[3\times 1.6\times {{10}^{-19}}\times 6.02\times {{10}^{23}}\] \[=2.89\times {{10}^{5}}\]coulomb
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