Which of the following is/are true? a Electron affinity of Ni is more than Co
b Electron affinity of Co is more than Fe
C Electron affinity of Ni is lower than Cu
d All of the above
Will give brainless ! If you get it right !

How is electrolysis most commonly used to produce an energy source? a - splitting water molecules produces oxygen, which organisms breathe to fuel their bodies. b - splitting water molecules produces hydrogen gas, which is used to power machines through hydrogen fuel cells. c - splitting carbon dioxide molecules produces coal, a form of carbon that can be burned to produce heat. d - splitting carbon dioxide molecules produces natural gas, which can be burned to generate electricity in power plants.