1.

A solution containing one mole per litre each of Cu(NO_(3))_(2),AgNO_(3),Hg_(2)(NO_(3))_(2),Mg(NO_(3))_(2) is being electrolyesd by using inert electrodes. The value of standard reduction potentials are Ag^(+)//Ag= +0.80V,Hg_(2)^(2+)//Hg=0.79V, Cu^(2+)// Cu=+0.34V,Mg^(2+)//Mg=-2.7V. with increasing voltage, the sequence of deposition of metals on the cathode will be:

Answer»

AG,MGHG,CU
Cu,HG,Ag,Mg
Ag,Hg,Cu
Mg,Cu,Hg,Ag

Answer :C


Discussion

No Comment Found