K.C.S.E Physics Q & A - MODEL 2011PP2QN04&5

K.C.S.E Physics Q & A - MODEL 2011PP2QN04&5

Figure 4. shows the cross-section of a dry cell. Use the information on the figure to answer questions 4 and 5.

​Name the parts labelled A and B. 
State the use of the manganese (IV) oxide in the cell. 

answers

​4. A = Carbon rod(+); 
B = Manganese (VI) oxide 
5. Manganese (IV) oxide is a depolarizer/oxidizing agent;