List of top Inorganic Chemistry Questions on Organometallic Compounds asked in GATE CY

The species that undergoes \(\beta\)-elimination is
The species which follows the 18-electron rule is
(\(en = \mathrm{ethylenediamine}\))
The interconversion of oxidation states of metal(s) observed in Wacker process is(are)
The correct electronic configuration of central metal ion in ferrocene with \(z\)-axis passing through the centre of two \(\mathrm{C_5H_5^-}\) rings and the metal ion is:
The sum of bond orders of metal-metal bonds in \([\mathrm{Os_2Cl_8}]^{2-}\), \([\mathrm{Re_2Cl_8}]^{2-}\), \([\mathrm{W_2(NMe_2)_6}]\) and \([\mathrm{Mo(C_5H_5)(CO)_2}]_2\) is (in integer).

The reaction of \(NiBr_2\) with two equivalents of \(PPh_3\) in \(CS_2\) at -78°C gives a red-colored diamagnetic complex, \([NiBr_2 \text{(PPh}_3\text{)}_2]\). This transforms to a green-colored paramagnetic complex with the same molecular formula at 25°C. The geometry and the number of unpaired electrons in the green-colored complex, respectively, are:

The correct order of increasing intensity (molar absorptivity) of the UV-visible absorption bands for the ions [Ti(H\(_2\)O)\(_6\)]\(^{3+}\), [Mn(H\(_2\)O)\(_6\)]\(^{2+}\), [CrO\(_4\)]\(^{2-}\), and [NiCl\(_4\)]\(^{2-}\) is: