Answer: The energy is located in the phosphoanhydride bond, present between the phosphate groups in the ATP ( adenosine triphosphate) molecule.
There are two high energy chemical bonds present in the ATP. These are called as phosphoanhydride bonds. A high amount of energy is released when these bonds are broken down. When one phosphoanhydride bond is broken down, it releases 7.3 kcal/mol of energy.
Thus, the correct answer is phosphoanhydride bond.
