By which one of the following reaction ketones cannot be prepared?

Question

By which one of the following reaction ketones cannot be prepared? (A) Hydration of alkynes (B) Hydrolysis of gem-dihalides (C) Dry distillation of calcium carboxylates (D) Stephen’s reaction

Tardigrade Admin · Accepted Answer

For more detail Stephen's reaction carried by reacting alkyl cyanide with SnCl2 and HCl gives only an aldehyde and not a ketone.

Q. By which one of the following reaction ketones cannot be prepared?

Hydration of alkynes

Hydrolysis of gem-dihalides

Dry distillation of calcium carboxylates

Stephen’s reaction

Ozonolysis of appropriately substituted alkenes

For more detail Stephen's reaction carried by reacting alkyl cyanide with $S n C l_{2}$ and $H Cl$ gives only an aldehyde and not a ketone.