NCERT Class XII Chemistry
Chapter - Coordination Compounds
Questions with Solutions
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Question : 30
Total: 43
The oxidation number of cobalt in K [ C o ( C O ) 4 ]
(a) + 1
(b) +3
(c) – 1
(d) –3
(a) + 1
(b) +3
(c) – 1
(d) –3
Solution:
(c) : + 1 + x + 4 ( 0 ) = 0
∴ x = – 1.
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