The effective atomic number of Co(CO)_4 is 35 and hence is less stable. It attains stability by

JEE Advanced Chemistry question

The effective atomic number of is 35 and hence is less stable. It attains stability by

(A)Oxidation of Co
(B)Reduction of Co
(C)DimerizationCorrect
(D)Tetramerization

Answer: (C)

Solution

(a hypothetical 17-electron, odd-electron fragment, , one short of the stable 36-electron Kr configuration) attains the stable 18-electron/EAN-36 configuration by dimerising:

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Question ID VK-160145