A) \[5.2\times {{10}^{6}}\]Couloumb
B) \[2.894\times {{10}^{5}}\]Couloumb
C) \[6.6\times {{10}^{6}}\]Couloumb
D) \[8.2\times {{10}^{6}}\]Couloumb
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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