Which one of the following is used as anode in Mercury button cell?
A. HgO mixed with graphite
B. Zinc amalgamated with mercury
C. Copper amalgamated with Mercury
D. HgO mixed with Copper
Answer:A
Which one of the following is used as anode in Mercury button cell?
A. HgO mixed with graphite B. Zinc amalgamated with mercury C. Copper amalgamated with Mercury D. HgO mixed with Copper