question_answer

  Account for the following : (a)  ions are not stable in aqueous solution.                                                                                                                1 (b) Most of the transit metal ions exhibit paramagnetic behavior.                                                                             1

Answer:

                  (a) is unstable in aqueous solution due to lower hydration energy and higher reduction potential.  1                                                                              (b) The transition elements involve the partial filling of d-sub shells. Most of the transition metal ions have unpaired electrons in d-sub shell (from). Therefore, they give rise to paramagnetic character.         1