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Select the correct statement(s) for given carbonyl compounds:

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“CO” bond order is lesser in ${[N b {(C O)}_{6}]}^{Θ}$ then in ${[T c {(C O)}_{6}]}^{\oplus}$

$" N b - C "$ bond order in ${[N b {(C O)}_{6}]}^{Θ}$ is greater than $" T c - C "$ bond order in ${[T c {(C O)}_{6}]}^{\oplus}$

${[T c {(C O)}_{6}]}^{\oplus}$ acts as reducing agent and ${[N b {(C O)}_{6}]}^{Θ}$ acts as oxidizing agent.

${[N b {(C O)}_{6}]}^{Θ}$ acts as reducing agent and ${[T c {(C O)}_{6}]}^{\oplus}$ acts as oxidizing agent

answer is A, B.

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Detailed Solution

Metal carbon bond order increases as the electron density at central metal increases.

${[N b {(C O)}_{6}]}^{Θ} E A N = 41 - (- 1) + 2 \times 6 = 54$

${[T c {(C O)}_{6}]}^{\oplus} E A N = 43 - (+ 1) + 2 \times 6 = 54$

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