Home
Class 12
CHEMISTRY
A metal carbonate, on being heated stron...

A metal carbonate, on being heated strongly gives a solid that forms a greenn solid with CoO. In which analytical group will the cation be precipitate and what will be the colour of the precipitate ?

A

Group I, white

B

Group II, yellow

C

Group III, white

D

Group IV, white

Text Solution

Verified by Experts

The correct Answer is:
D
The formation of a green solid with CoO indicates `Zn^(2+)` (charcoal cavity test)
`ZnCO_(3) overset(heat)to ZnO underset(heat)overset(CoO)tounderset("Rinmann's green")(CoZnO_(2))`
Promotional Banner

Topper's Solved these Questions

  • QUALITATIVE INORGANIC ANALYSIS

    VK JAISWAL|Exercise LEVEL 3|72 Videos

  • QUALITATIVE INORGANIC ANALYSIS

    VK JAISWAL|Exercise ONE OR MORE ANSWER IS/ARE CORRECT|45 Videos

  • QUALITATIVE INORGANIC ANALYSIS

    VK JAISWAL|Exercise SUBJECTIVE PROBLEMS|5 Videos

  • PERIODIC PROPERTIES

    VK JAISWAL|Exercise ASSERTION-REASON TYPE QUESTIONS|35 Videos

  • s-BLOCK ELEMENTS

    VK JAISWAL|Exercise SUBJECTIVE PROBLEMS|2 Videos

Similar Questions

Explore conceptually related problems

Which give colored carbonate precipitate?

When sodium chromate solution is mixed with barium sulphate solution , a precipitate is formed . What is the colour of the precipitate formed ?

Which of the following combinations in an aqueous medium will give a red colour or precipitate ?

Which of the following combinations in an aqueous medium will give a blue colour or precipitate ?

When you mix solutions of lead (II) nitrate and potassium iodide, What is the colour of the precipitate formed? Name the compound of the precipitate.

The cation which gives a yellow precipitate with potassium chromate is

Aqueous solution of which of the following cation gives precipitate with potash alum?

VK JAISWAL-QUALITATIVE INORGANIC ANALYSIS-LEVEL 2
  1. Which of the following pairs of cations can be separated by passing H(...

    Text Solution

    |

  2. Which of the following pairs of cations can be separated by using an N...

    Text Solution

    |

  3. Which of the following ions cannot be detected by the borax bead or mi...

    Text Solution

    |

  4. Which of the following pairs of cations will turn borax beads blue in ...

    Text Solution

    |

  5. A colourless crystalline salt, on being heated, gives a coloured gas w...

    Text Solution

    |

  6. When NH(4)Cl is not used together with NH(4)OH in group-III reagent wh...

    Text Solution

    |

  7. underset("imparts violet colour to flame")((T)) overset("Compound (U)+...

    Text Solution

    |

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

    Text Solution

    |

  9. The only cations present in the slightly acidic solution are Fe^(3+),Z...

    Text Solution

    |

  10. When conc. H(2)SO(4) was teated with K(4)[Fe(CN)(6)], CO gas was evolv...

    Text Solution

    |

  11. Unknown salt 'A'+K(2)Cr(2)O(7)+"conc. "H(2)SO(4) to Reddish brown fume...

    Text Solution

    |

  12. An inorganic red coloured compound (A) on heating gives a compound (B)...

    Text Solution

    |

  13. Select correct statement(s): (I) When excess FeCl(3) solution is add...

    Text Solution

    |

  14. Which of the followig reagents are used for the detection of acetate a...

    Text Solution

    |

  15. Which of the following mixtures of ions cann be separated by using an ...

    Text Solution

    |

  16. A metal carbonate, on being heated strongly gives a solid that forms a...

    Text Solution

    |

  17. A solution of a metal ion when treated with KI gives a red precipitate...

    Text Solution

    |

  18. A white powder solid A forms a light green solution with water, which ...

    Text Solution

    |

  19. Which of of the following is the composition of the yellow precipitate...

    Text Solution

    |

  20. Which of the following mixtures cann be separated by using excess NH(3...

    Text Solution

    |