1.

{:((i)"Zn - anode, Graphite - cathode with "MnO_(2),"(a) Lithium - ion battery"),("(ii) Zn amalgamated with mercury anode,",(b) " Leclanche cell"),("HgO mixed with graphite cathode",),("(iii) Spongy lead anode, plate bearing "PbO_(2),"(c )Mercury button cell"),("(iv) Porous graphite andoe "CoO_(2)" cathode","(d) Lead storage battery"):}

Answer»

`{:(A,B,C,D),(b,c,d,a):}`
`{:(A,B,C,D),(a,b,c,d):}`
`{:(A,B,C,D),(d,a,b,c):}`
`{:(A,B,C,D),(c,d,a,b):}`

ANSWER :A


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