For determining bridging carbonyls:
• Examine the geometry and bonding of the complex.
• Bridging carbonyls are shared between two metal centers, while terminal carbonyls are bonded to a single metal atom.
1. Bridging Carbonyls in W(CO)6:
- Tungsten hexacarbonyl (W(CO)6) has an octahedral geometry, and all carbonyl ligands are terminal.
- Number of bridging carbonyls: 0.
2. Bridging Carbonyls in Mn2(CO)10:
- Manganese decacarbonyl (Mn2(CO)10) has a metal-metal bond with all carbonyls being terminal in its structure.
- Number of bridging carbonyls: 0.
3. Total Bridging Carbonyls:
- Sum = 0 + 0 = 0.
Consider the following reaction sequence.
Which of the following hydrocarbons reacts easily with MeMgBr to give methane? 
A substance 'X' (1.5 g) dissolved in 150 g of a solvent 'Y' (molar mass = 300 g mol$^{-1}$) led to an elevation of the boiling point by 0.5 K. The relative lowering in the vapour pressure of the solvent 'Y' is $____________ \(\times 10^{-2}\). (nearest integer)
[Given : $K_{b}$ of the solvent = 5.0 K kg mol$^{-1}$]
Assume the solution to be dilute and no association or dissociation of X takes place in solution.
Inductance of a coil with \(10^4\) turns is \(10\,\text{mH}\) and it is connected to a DC source of \(10\,\text{V}\) with internal resistance \(10\,\Omega\). The energy density in the inductor when the current reaches \( \left(\frac{1}{e}\right) \) of its maximum value is \[ \alpha \pi \times \frac{1}{e^2}\ \text{J m}^{-3}. \] The value of \( \alpha \) is _________.
\[ (\mu_0 = 4\pi \times 10^{-7}\ \text{TmA}^{-1}) \]