In the Wurtz-Fittig reaction, alkyl halides and aryl halides react in the presence of sodium metal in dry ether to form alkyl aryl compounds: \[ C_6H_5Cl + CH_3Cl + 2Na \xrightarrow{\text{Dry Ether}} C_6H_5CH_3 + 2NaCl. \]
Explanation: Wurtz Reaction involves only alkyl halides. Fittig Reaction involves only aryl halides. Williamson Ether Synthesis is unrelated to this reaction.
On charging the lead storage battery, the oxidation state of lead changes from $\mathrm{x}_{1}$ to $\mathrm{y}_{1}$ at the anode and from $\mathrm{x}_{2}$ to $\mathrm{y}_{2}$ at the cathode. The values of $\mathrm{x}_{1}, \mathrm{y}_{1}, \mathrm{x}_{2}, \mathrm{y}_{2}$ are respectively:
What is the empirical formula of a compound containing 40% sulfur and 60% oxygen by mass?