Home
Class 12
CHEMISTRY
Out of Cu^(2+),Ni^(2+),Co^(2+) and Mn^(2...

Out of `Cu^(2+),Ni^(2+),Co^(2+)` and `Mn^(2+)` those dissolved in dil. HCL only one gives a precipitate when` H_(2)S` is passed. Identify the corresponding one.

A

`Ni^(2+)`

B

`Cu^(2+)`

C

`Co^(2+)`

D

`Mn^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Cu^(2+)` with `H_(2)S` in presence of dil. HCl gives CuS( Black ppt)
Promotional Banner

Topper's Solved these Questions

  • QUALITATIVE ANALYSIS

    NARAYNA|Exercise LEVEL-IV (NCERT)|2 Videos

  • QUALITATIVE ANALYSIS

    NARAYNA|Exercise Passage -I|3 Videos

  • QUALITATIVE ANALYSIS

    NARAYNA|Exercise Assertion & Reason Questions|10 Videos

  • PRACTICAL ORGANIC CHEMISTRY

    NARAYNA|Exercise SUBJECTIVE_TYPE|1 Videos

  • SOLID STATES

    NARAYNA|Exercise EXERCISE-4|18 Videos

Similar Questions

Explore conceptually related problems

The metal ion which is precipitated when H_(2)S is passed with HCl is

Which of the following gives a black precipitate when H_(2)S gas is passed through its solution

Why zinc sulphide is not precipitated when H_(2)S is passed through ZnCl_(2) solution ?

An aqueous solution of a substance, on treatment with dilute HCl, gives a white precipitate soluble in hot water. When H_(2)S is passed through the hot acidic solution, a black precipitate is formed. The substance is:

A compound (A) when treated with Kl gives a Scarlet red ppt. (B) which dissolves in excess of Kl. This solution is made alkaline with NaOH and gave brown precipitate (C) when NH_(3) gas is passed through it. When (A) is added with small amount of SnCl_(2) it gives a white ppt (D) but gives grey precipitate with excess amount of SnCl_(2) . When H_(2)S gas is passed through an acidic solution of (A) a black precipitate (E) is obtained. Identify (A) to (E). Write the reactions involved.

NARAYNA-QUALITATIVE ANALYSIS-LEVEL -III
  1. Potassium chromate solution is added to an aqueous solution of a metal...

    Text Solution

    |

  2. PbCrO(4) is yellow in colour due to

    Text Solution

    |

  3. PbCl(2) is added with 'X' as a result an yellow coloured precipitate '...

    Text Solution

    |

  4. Which of the following can be used to precipitated lead salt

    Text Solution

    |

  5. When cupric sulphate solution is added with 'X' it produced a deep blu...

    Text Solution

    |

  6. Schewitzer's reagent is

    Text Solution

    |

  7. Which of the following is used to oxidise Fe^(+2) to Fe^(+3) in III gr...

    Text Solution

    |

  8. On addition of aqueous NaOH to a salt solution, a white gelatinous pre...

    Text Solution

    |

  9. Al^(3+) and Fe^(3+) are present together in group III of qualitative a...

    Text Solution

    |

  10. Ferric ion forms a Prussian blue coloured precipitate due to fromation...

    Text Solution

    |

  11. Out of Cu^(2+),Ni^(2+),Co^(2+) and Mn^(2+) those dissolved in dil. HCL...

    Text Solution

    |

  12. In the brown ring test, the brown colour of the ring is due to

    Text Solution

    |

  13. When Kl is added to acidified solution fo sodium nitrite,

    Text Solution

    |

  14. Manganese salt + PbO(2) + Conc. HNO(3) rarr The solution acquires purp...

    Text Solution

    |

  15. As(2)S(3) dissolves in a solution of yellow ammonium sulphide to give

    Text Solution

    |

  16. In the reactions, K(2)Cr(2)O(7)+KCl+"conc."H(2)SO(4)overset("heat")(...

    Text Solution

    |

  17. When NH(4)Cl is added to a solution of NH(4)OH :

    Text Solution

    |

  18. CuSO(4) solution reacts with excess of KCN solution to form:-

    Text Solution

    |

  19. To a metal nitrate, when KI solution is added, a black precipitate is ...

    Text Solution

    |

  20. K(4)[Fe(CN)(6)] is not used for the detection of

    Text Solution

    |