Energy stored in the bonds that hold together the atoms and molecules of all substances is called a. mechanical energy. b. electrical energy. c. chemical energy. d. kinetic energy.

Chemical energy is the answer to the energy stored in he bonds that hold together the atoms and molecules of all substances. SO answer C is the right one.

Hope this answers your doubt !! :)

it may be wrong but i think its a

need to see circuit to get time constant