question_answer 67)

    Match column I with column II for the oxidation states of the central atoms.  

Column l	Column ßß
(i) \[C{{r}_{2}}O_{7}^{2-}\]	(a) \[+3\]
(ii) \[MnO_{4}^{-}\]	(b) \[+4\]
(iii) \[VO_{3}^{-}\]	(c) \[+5\]
(iv) \[FeF_{6}^{3-}\]	(d) \[+6\]
	(e) \[+7\]

 

Answer:

  (i-d), (ii-e), (iii-c), (iv-a)