Match List 1 and List 2, (the basis of matching being complex formation in qualitative or quantitative analysis of ions) and select the correct answer using the codes given below the lists.
`{:(List I,,,,List2),(Ions i nvolved,,,,Compl ex i ng ag ent),(a. Ni^(2+),,,,1.EDTA),(b. Zn^(2+),,,,2. Sodium nitroprussi de),(c. Cu^(2+),,,,3. Ammonia),(d. S^(2-),,,,4. Dimethylglyo x ime):}`
Codes:

Options

A. (a) `{:(A,B,C,D,),(1,2,3,4,):}`
B. (b) `{:(A,B,C,D,),(4,1,3,2,):}`
C. (c) `{:(A,B,C,D,),(3,4,2,1,):}`
D. (d) `{:(A,B,C,D,),(4,3,1,2,):}`

Answer

B

Explanation

`{:((a),(b),(c),(d),),(darr,darr,darr,darr,),(4,1,3,2,):}`
Dimethylglyoxime used for identification of nickel ion `(Ni^(2+))`
`Ni^(2+)+2DMG+NH_4OHrarrunderset(Rosy Red)[Ni(DMG)_2]`

`rarrZn^(2+)` forms complex with EDTA
`rarrCu^(2+)` form complex with `NH_3`
`rarrunderset(sodium nitroprusside)(Na_2S+Na_2[Fe(CN)_5NO])rarrunderset(viol et colour)(Na_4[Fe(CN)_5NOS])`