12th Class Chemistry The d-and f-Block Elements / d तथा f ब्लॉक के तत्व

  • question_answer 79)
        Although +3 is the characteristic oxidation state for lanthanoids but cerium also shows+4 oxidation state because (a) it has variable ionisation enthalpy (b) it has a tendency to attain noble gas configuration (c) it has a tendency to attain  configuration (d) it resembles

    Answer:

               (b, c) Electronic configuration of . Therefore, electronic configuration of . Thus, it has a tendency to attain noble gas configuration and attain f° configuration.


You need to login to perform this action.
You will be redirected in 3 sec spinner