Question

EMF of Ni(s) ! Ni²⁺(aq) !! Cu²⁺ (aq) ! Cu(s) cell can be increased by

(1) Adding NH3 in the right half-cell

(2) Increasing the conc. of Ni2+ ions

(3) Adding dimethyl glyoxime into the left half-cell

(4) Changing the electrolyte present in salt bridge 

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