The following questions concerning electrolysis of molten sodium hydride (NaH), the products are Na(?) and H2(g). Which of teh following statement(s) is (are) correct?
a. H2 (g) is prodeuced at the anode
b. If electricity is provided by a battery (voltaic cell), electrons will flow out of the negative terminal of the volltaic cell into the positive terminal of the electrolytic cell
c. Na is generated at the cathode
d. cathode has negative polarity
e. anode has positive polarity