Number of bonds in benzene :
6 and 3
12 and 3
3 and 12
6 and 6
B.
12 and 3
Thus in benzene , 12 and 3 bonds are present .
If hydrogen electrode dipped in two-solution of pH = 3 and pH = 6 and salt bridge is connected , the emf of resulting cell is :
0.177 V
0.3 V
0.052 V
0.104 V