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Correct sequence of C O bond order in given compounds is (P) F e ( C O ) 5 (Q) C O (R) H 3 B ← C O (S) [ M n ( C O ) 5 ] -

Options

  1. AP > R > S > Q
  2. BS > P > R > Q
  3. CQ > S > P > R
  4. DR > Q > P > S

Correct answer

D. R > Q > P > S

Step-by-step solution

Q : C - ≡ O + : B . O . = 3 P & S M ⇄ C = O B . O . = 2 R H 3 B - ← C ≡ O + B . O . = 3

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