Home
Class 12
CHEMISTRY
NiS is separated from ZnS by treating wi...

NiS is separated from ZnS by treating with

A

NaOH

B

conc. HCl

C

yellow ammonium sulphide

D

aqua regia

Text Solution

Verified by Experts

The correct Answer is:
2

In the sulphides of IV group,
NiS is black and insoluble in conc. HCl white ZnS is soluble in conc. HCl.
Promotional Banner

Topper's Solved these Questions

  • QUALITATIVE ANALYSIS

    NARAYNA|Exercise LEVEL-V|32 Videos
  • QUALITATIVE ANALYSIS

    NARAYNA|Exercise Multiple Answer Question|29 Videos
  • QUALITATIVE ANALYSIS

    NARAYNA|Exercise LEVEL-I(H.W)|30 Videos
  • PRACTICAL ORGANIC CHEMISTRY

    NARAYNA|Exercise SUBJECTIVE_TYPE|1 Videos
  • SOLID STATES

    NARAYNA|Exercise EXERCISE-4|18 Videos

Similar Questions

Explore conceptually related problems

At high temperature, carbon reacts with water to produce a mixture of CO and H_(2) . C + H_(2) O overset ("Heat heat")rarr CO + H_(2) CO is separated from H_(2) and then used to separate Ni from CO by forming a volatile compound, nickel tetracarbonyl (Ni(CO)_(4)) . Ni + 4CO rarr Ni(CO)_(4) (a) Formation of volatile Ni(CO)_(4) and its subsequent heating give pure Ni . Name the process involved. (b) How many moles of Ni(CO)_(4) could be obtained from CO produced by the reaction of 75.0 g is carbon ?

When the same amount of Zn is treated with excess of H_(2)SO_(4) and excess of NaOH separately, the ratio of the volume of hydrogen evolved is-

NARAYNA-QUALITATIVE ANALYSIS-Level -II (H.W.)
  1. Which one among the following pairs of ions cannot be separated by H(2...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  11. NiS is separated from ZnS by treating with

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

  19. Which of the following pairs is not distinguished by passing H(2)S ?

    Text Solution

    |

  20. A red solid is insoluble in water. However, it becomes soluble if some...

    Text Solution

    |