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Which sulphides are soluble only in aqur...

Which sulphides are soluble only in aqura regina ?

A

NiS

B

CoS

C

HgS

D

all of these

Text Solution

Verified by Experts

The correct Answer is:
D
All sulphides are soluble in aqua regia which is a mixture of conc. HCl (3 parts) and conc. `HNO_(3)` (1 part)
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DINESH PUBLICATION-APPENDICES-Multiple choice
  1. All ammonium salts liberate ammonia when :

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  2. Silver, mercury (our) and lead are grouped toether in the same group o...

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  3. Which sulphides are soluble only in aqura regina ?

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  4. In the second group of qualitative analysis, H(2)S is pass through a s...

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  5. Two colourless gases on mixing formed dense white fumes. These are :

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  6. Few drops of salt solution are shaken with chloroform followed by chlo...

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  7. A compound is soluble in water. If ammonia is added to aqueous solutio...

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  8. Dolute nitric acid is generally not used for the preparation of origin...

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  9. Formation of a green edged flame on igniting the vapours evolved by he...

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  10. Reagent which can detect the presence of NH(3) is:

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  11. which cation cannot be identified by flame test ?

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  12. An aqueous solution of a mixture contains Br^(-) and I^(-) ions. On pa...

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  13. which is not soluble in CH(3)COOH ?

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  14. Which volatile compound burns with green edged flame ?

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  15. which among the following pairs of ions cannot be separated by H(2)S i...

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  16. An queous solution of a substance gives a white precipitate on treatin...

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  17. The metal ions which are precipitated when H(2)S gas is passed in the ...

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  18. Which of the following metal sulphides have maximum solubility in wate...

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  19. The compound formed in the Borax Bead Test of Cu^(2+) ions in the oxi...

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  20. A gas 'X' is passed through water to form a solution. The aqeous solut...

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