NCERT Class XII Chemistry
Chapter - Coordination Compounds
Questions with Solutions
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Question : 23
Total: 43
Give the oxidation state, d-orbital occupation and coordination numberof the central metal ion in the following complexes :
(i)K 3 [ C o ( C 2 O 4 ) 3 ]
(ii)c i s − [ C r ( e n ) 2 C l 2 ] C l
(iii)( N H 4 ) 2 [ C o F 4 ]
(iv)[ M n ( H 2 O ) 6 ] S O 4
(i)
(ii)
(iii)
(iv)
Solution:
(i) K 3 [ C o ( C 2 O 4 ) 3 ] − O . S . = + 3 ,
C . N . = 6 , 3 d 6 configuration = t 2 g 6 e g 0
(ii)c i s − [ C r ( e n ) 2 C l 2 ] C l − O . S . = + 3 ,
C . N . = 6 , d 3 configuration = t 2 g 3
(iii)( N H 4 ) 2 [ C o F 4 ] − O . S . = + 2 ,
C . N . = 4 , d 7 configuration = t 2 g 5 e g 2
(iv)[ M n ( H 2 O ) 6 ] S O 4 − O . S . = + 2 ,
C . N . = 6 , d 5 configuration = t 2 g 3 e g 2
(ii)
(iii)
(iv)
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