Organic Chemistry
The six-membered ring cyclic hemiacetal has the highest equilibrium constant (Keq) for its formation since it is the most stable ring due to less ring strain.
The five-membered ring cyclic hemiacetal has the highest equilibrium constant (Keq) for its formation since it is the least stable ring due to less ring strain.
The four-membered ring cyclic hemiacetal has the highest equilibrium constant (Keq) for its formation since it is the most stable ring due to ring strain.
The three-membered ring cyclic hemiacetal has the highest equilibrium constant (Keq) for its formation since it is the most stable ring due to ring strain.