The compound that is not olefinic organometallic is

1.	The compound that is not olefinic organometallic is
A.	\[K\left[ {{C}_{2}}{{H}_{4}}PtC{{l}_{3}} \right].3{{H}_{2}}O\]
B.	\[Be{{(C{{H}_{2}})}_{2}}\]
C.	\[{{({{C}_{2}}{{H}_{4}}PtC{{l}_{3}})}_{2}}\]
D.	\[{{C}_{4}}{{H}_{4}}Fe{{(CO)}_{3}}\]
Answer» B. \[Be{{(C{{H}_{2}})}_{2}}\]

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The compound that is not olefinic organometallic is

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