MCQOPTIONS
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MCQOPTIONS
| 1. |
Complexes formed in the following methods areI.Mond's process for purification of nickel.II.Removal of lead poisoning from the body.III.Cyanide process for extraction of silver.IV.Froth flotation process for separation of ZnS from galena ore by using depressant. |
| A. | I.II.III.IV. \[Ni{{\left( CO \right)}_{4}}\]\[[Pb{{\left( EDTA \right]}^{2-}}\]\[{{[Ag{{\left( CN \right)}_{2}}]}^{-}}\]\[[Zn{{(CN)}_{2}}]\] |
| B. | I.II.III.IV. \[Ni{{\left( CO \right)}_{4}}\]\[[Pb{{\left( EDTA \right]}^{2-}}\]\[{{[Ag{{\left( CN \right)}_{2}}]}^{-}}\]\[{{[Zn{{(CN)}_{4}}]}^{2-}}\] |
| C. | I.II.III.IV. \[Ni{{\left( CO \right)}_{6}}\]\[[Pb{{\left( EDTA \right]}^{4-}}\]\[{{[Ag{{\left( CN \right)}_{2}}]}^{-}}\]\[{{[Zn{{(CN)}_{6}}]}^{4-}}\] |
| D. | I.II.III.IV. \[Ni{{\left( CO \right)}_{4}}\]\[[Pb{{\left( EDTA \right]}^{2-}}\]\[{{[Ag{{\left( CN \right)}_{4}}]}^{3-}}\]\[{{[Zn{{(CN)}_{4}}]}^{2-}}\] |
| Answer» C. I.II.III.IV. \[Ni{{\left( CO \right)}_{6}}\]\[[Pb{{\left( EDTA \right]}^{4-}}\]\[{{[Ag{{\left( CN \right)}_{2}}]}^{-}}\]\[{{[Zn{{(CN)}_{6}}]}^{4-}}\] | |