Question

Iron carbonyl, $Fe(CO{)}_5$ is

• A. dinuclear
• B. tetranuclear
• C. trinuclear
• D. mononuclear

Answer 1

Answer: (D)

• Based on the number of metal atoms present in a complex, they are classified into mononuclear, dinuclear, trinuclear and so on.

eg: $Fe(CO{)}_5:$ mononuclear

$C{o}_2(CO{)}_8:$ dinuclear

$F{e}_3(CO{)}_{12}:$ trinuclear