\[{{S}_{1}}\]: In organometallic compounds, carbon must be bonded to metal/metalloids directly. |
\[{{S}_{2}}\]: Complexes having \[d{}^\circ \] or \[{{d}^{10}}\] configuration of metal ion are always diamagnetic. |
\[{{S}_{3}}\]: Extra stability of metal carbonyls is explained by synergic bonding. |
\[{{S}_{4}}\]: In \[Fe{{(CO)}_{5}}\] the Fe-C bond possess both \[\sigma \] and \[\pi \] characters. |
A) TTTT
B) TTFF
C) FTFT
D) FTTT
Correct Answer: A
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