Which one of the following hydrolysis reactions would you ex

Which one of the following hydrolysis reactions would you expect to release the largest amount energy?

ATP--> AMP+ 2 Pi

ATP--> ADP + Pi

ATP--> A +P-P-P   

ADP+ Pi--> ATP

Solution

Answer : The correct answer B ( ATP--> ADP + Pi)

Hydrolysis of pyrophosphate (terminal phosphate) yields more free energy than the remaining phosphate groups,