The dand fblock elements - Result Question 34

####34. The common oxidation states of Ti are [1994]

(a) +2,+3

(b) +3,+4

(c) 3,4

(d) +2,+3,+4

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Solution:

  1. (b) Ti(22)=[Ar]3d24s2

minimum oxidation state is +2 and maximum oxidation state is +4 .

Ti4+=[Ar]

Hence, it is most stable state of Ti.

Ti3+=[Ar]3d1

It acts as a good reducing agent as it can readily oxidized to Ti4+ ion.

Ti2+=[Ar]3d2

It is the most unstable form.

Thus, +3 and +4 are the common oxidation states. 2 이 

The minimum oxidation state of transition metals is equal to the number of electrons in 4s shell and the maximum oxidation state is equal to the sum of the 4s and 3d electrons.



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