Which of the following statement(s) is/are correct?

Options

A. In galvanic cell, salt bridge is not necessary for start of the cell reaction
B. A standard hydrogen electrode is assumed to have zero electrode potential at all temperatures
C. In electrolysis of diluted aqueous solution of NaCI, products at anode and cathode are `O_(2)` and `H_(2)` respectively
D. Inert electrolyte having comparable velocity of cation and anion is taken in salt bridg so as to maintain almost constant potential difference between two half cells

Answer

A, B, C, D