MCQ
The formula of ferrocene is
  • A
    ${\left[ {Fe{{(CN)}_6}} \right]^{4 - }}$
  • B
    ${\left[ {Fe{{(CN)}_6}} \right]^{3 - }}$
  • C
    $\left[ {Fe{{(CO)}_5}} \right]$
  • $\left[ {{{\left( {{C_5}{H_5}} \right)}_2}Fe} \right]$

Answer

Correct option: D.
$\left[ {{{\left( {{C_5}{H_5}} \right)}_2}Fe} \right]$
d
It’s obvious.

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