Organic Chemistry

To determine which oxide is the most acidic, we look at the oxides of metals and non-metals. Oxides of non-metals (like Cl O ) are generally acidic, while oxides of metals tend to be basic.
- Na O and CaO are basic oxides of metals.
- Al O is amphoteric, meaning it can act as either an acid or a base depending on the conditions.
- Cl O is an acidic oxide and is the strongest acid among the options. It reacts vigorously with water to form acids.
Thus, Cl O is the most acidic oxide.

The reaction involves an alkene ( ) undergoing hydration in the presence of sulfuric acid. This is a typical electrophilic addition reaction, where the alkene undergoes protonation, followed by nucleophilic attack by water to form the alcohol.
1. The alkene, , reacts with (sulfuric acid), leading to the formation of an alkyl hydrogen sulfate intermediate.
2. The intermediate then undergoes hydrolysis, leading to the formation of ethanol, .
Thus, the major product ‘A’ is , and the major product ‘B’ is .