The major product X in the reaction is A. The major product Y in the reaction is B.
In the reaction, the electrophile is the carbocation formed by the protonation of the alkene. The nucleophile is the water molecule. The reaction proceeds by a two-step mechanism. In the first step, the nucleophile attacks the electrophile, forming a tetrahedral intermediate. In the second step, the leaving group leaves, forming the product.
In the reaction, the electrophile is the carbocation formed by the protonation of the alkene. The nucleophile is the hydroxide ion. The reaction proceeds by a two-step mechanism. In the first step, the nucleophile attacks the electrophile, forming a tetrahedral intermediate. In the second step, the leaving group leaves, forming the product.
The major product X is the product that is formed in the highest yield. The major product Y is the product that is formed in the second highest yield.
The product A is formed by the attack of the nucleophile on the electrophile from the back side. The product B is formed by the attack of the nucleophile on the electrophile from the front side. The product C is formed by the attack of the nucleophile on the electrophile from the side. The product D is not formed in this reaction.