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A black sulphide is formed by the action...

A black sulphide is formed by the action of `H_(2)S` on

A

`CaCI_(2)`

B

`CdCI_(2)`

C

`ZnCI_(2)`

D

`NaCI`

Text Solution

Verified by Experts

The correct Answer is:
a
`CuCI_(2) + H_(2)S rarr underset(("Black"))(CuS)+2HCI`
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CENGAGE CHEMISTRY-QUALITATIVE INORGANIC SALT ANALYSIS-Exercises (Single Correct) Part-C (Analysis Of Cations)
  1. Lead has been placed in qualitative group analysis Ist and 2nd because

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  2. As(2)S(3) is

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  3. A black sulphide is formed by the action of H(2)S on

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  4. The group II precipitate soluble in yellow ammonium sulphide may be

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  5. Nitric acid is generally not used for prepation of original solution ...

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  6. The sulphide not soluble in hot dilute nitric acid is

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  7. H(2)S will precipitate the sulphide of all the metals from the soluti...

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  8. To a solution of a substance gradiual addition of ammonium hydroxide...

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  9. A compound is soluble in water if ammonia is added to aqeous solution...

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  10. A light green salt soluble in water gives black precipitate on passi...

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  11. All ammonium salt liberate ammonia when

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  12. Manganese salt + PbO(2) + conc. HNO(2) rarr The solution has purple ...

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  13. An orange precipitate of group II is dissolve in cone HCI the solutio...

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  14. Which of the following solution gives precipitate with Pb(NO(3))(2) bu...

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  15. A white powder when strongly heated gives off brown forms A solution...

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  16. The ion that cannot be precipitate by both HCI and H(2)S is

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  17. The presence of magnessium is confimed in the qualitative amalysis by ...

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  18. In qualitative inorganic amalysis phosphan , if present is to be eleme...

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  19. Na(2)CO(3) cannot be used in place of (NH(4))(2)CO(3) for the precipit...

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  20. Disodium hydrogen phosphate is used in test :

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