Ncert Exercises & Solutions

Q. 24 24 Arrange the following complexes in the increasing order of conductivity of their solution

$[C o {(N H_{3})}_{3} C l_{3}], [C o (N {H_{3}}_{4} C l_{2}] C l, [C o {(N H_{3})}_{6}] C l_{3}, [C r {(N H_{3})}_{5} C l] C l_{2}$

Here, number of ions increase ancl conductivity increases.

lons or molecules present autside the coordination sphere are ionisatsle. A complex which

gives more ions on dissolution, is more conducting.

$[C o {(N H_{3})}_{3} C l_{3}] < [C o (N {H_{3}}_{4} C l_{2}] < C l, [C o {(N H_{3})}_{5} C l_{2}] C l_{2}, < [C O {(N H_{3})}_{6} C l] C l_{3}$