CHCH
CH3CH(Br)CH3
CH3CH2CH2Br
CH2=CH-Br
BrCH=CH-CH3
A.
CH3CH(Br)CH3
(CH3)2-CH-OMgBr (CH3)2-CH-Br
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