When 0.1molCoCl3(NH3)5 is treated with excess of AgNO3,0.2mol of AgCl are obtained. The conductivity of solution will correspond to:
A
1:3 electrolyte
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B
1:2 electrolyte
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C
1:1 electrolyte
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D
3:1 electrolyte
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Solution
The correct option is C1:2 electrolyte 0.2mol of AgCl are obtained when 0.1molCoCl3(NH3)5 is treated with excess of AgNO3 which shows that one molecule of the complex gives two Cl− ions in solution.
Thus, the formula of the complex is [Co(NH3)5Cl]Cl2 i.e. 1:2 electrolyte.