Choose the correct option :
a) During recharging gibbs free energy is positive
b) In concentration cell , reduction will take place in the cell's compartment where concentration is higher
c) Photosynthesis is an electrochemical process
a,b,c
a,b
b,c
a
As the mark is done on the cell during recharging, Gibbs's free energy is positive. Le Chatiler's
principle indicates that reaction is more favourable to reaction when concentration is higher
Photosynthesis is indeed an electrochemical process where water/arsenite is used as an electron
Therefore,option(1) is correct