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Which one among the following pairs of i...

Which one among the following pairs of ions cannot be separated by `H_(2)S` in dilute HCl ?

A

`Bi^(3+),Sn^(4+)`

B

`Al^(3+),Hg^(2+)`

C

`Zn^(2+),Cu^(2+)`

D

`Ni^(2+),Cu^(2+)`

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NARAYNA-QUALITATIVE ANALYSIS-Level -II (H.W.)
  1. Three separate samples of a solution of a single salt gave these resul...

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  2. Which is not dissolved in dil. HCl?

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  3. Which one among the following pairs of ions cannot be separated by H(2...

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  4. In the separation of Cu^(2+) and Cd^(2+) of Iind group in qualitative ...

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  5. Which of the following sulphate is insoluble in water ?

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  6. Passing H(2)S gas into a mixture of Mn^(2+), Ni^(2+), Cu^(2+) and Hg^(...

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  7. An aqueous solution of a substance gives a white precipitate on treat...

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  8. When H(2)S gas is passed through an ammonical salt solution X, a sligh...

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  9. MgSO(4) on reaction with NH(4)OH and Na(2)HPO(4) forms a white crystal...

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  10. When dimethyl glyoxime solution is added to an aqueous solution of nic...

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  11. Aqueous solution of A gives yellow precipitate with aqueous solution o...

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  12. The sulphides of which one of the following groups of elements are sol...

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  13. NiS is separated from ZnS by treating with

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  14. Mercurous chloride black on adding NH(4)OH to it. Explain.

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  15. Which of the following sulphides is yellow in colour?

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  16. An orange precipitate in the second group is given by

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  17. An aqueous solution containing Hg^(2+),Hg(2)^(2+),Pb^(2+) and Cd^(2+) ...

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  18. Upon treatment with ammonical H(2)s, the metal ion that precipitates a...

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  19. Calomel (Hg(2)Cl(2)) on reaction with ammonium hydroxide gives

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  20. A sulphate of a metal (A) on heating evolves two gases (B) and ( C) an...

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