a) Draw the major product(s) of the following reactions including stereochemistry when it is appropriate.

b) Draw the major product(s) of the following reactions including stereochemistry when it is appropriate.

c) Draw the major product(s) of the following reactions including stereochemistry when it is appropriate.

Relevant knowledge

Hydration Reaction

Alkyne is converted into a ketone through the hydration reaction catalyzed by mercuric-ion. After protonation of alkynyl carbons, the water swells as the nucleophile is destroyed and an enol forms which is tautomerized to form the ketone.