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Is it possible to store (i) Copper sulphate in a zinc vessel ? (ii) Copper sulphae in a silver vessel ? (iii) Copper sulphate in a nickel vessel ? (iv) Copper sulphate in a gold vessel |
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Answer» Solution :(i) From Table 18.1 , it clear that electrode potential of COPPER `(Cu^(2+)|Cu=0.34)` is more than zinc `(Zn^(2+)|Zn=-0.76V)` , THEREFORE , it will be readily reduced to copper and zinc will be oxidized . As a result , zinc VESSEL will DISSOLVE . (ii) It is possible to store copper SULPHATE in a silver vessel because silver vessel will not dissolve `(Ag^(+)|Ag=0.80V)` . (iii) It is not possible to store copper sulphate in nickel vessel because Ni will dissolve (`Ni^(2+)|Ni=-0.13V)` (iv) It is possible to store copper sulphate in gold vessel `(Au^(3+)|Au=1.61V)`. |
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