Home
Class 11
CHEMISTRY
A pink coloured salt turns blue on heati...

A pink coloured salt turns blue on heating. The presence of which cation is most likely?

A

`Cu^(2+)`

B

`Co^(2+)`

C

`Zn^(2+)`

D

`Fe^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • SALT ANALYSIS

    GRB PUBLICATION|Exercise C.Class- A Subgroup-I-Acidic Radicals|50 Videos

  • SALT ANALYSIS

    GRB PUBLICATION|Exercise D.Class-A Subgroup-II Acidic Radicals|39 Videos

  • SALT ANALYSIS

    GRB PUBLICATION|Exercise Subjective Type|69 Videos

  • S BLOCK ELEMENTS

    GRB PUBLICATION|Exercise SUBJECTIVE TYPE|9 Videos

  • THERMODYNAMICS

    GRB PUBLICATION|Exercise All Questions|704 Videos

Similar Questions

Explore conceptually related problems

Existence of which hydrated salt is most likely?

Generally transition elements from coloured salts due to the presence of unpaired electrons. Which of the following compounds will be coloured in solid state?

The Lassaigne's solution when heated with ferrous sulphate and acidified with sulphuric acid gave intense blue colour indicating the presence of nitrogen. The blue colour is due to formation of:

When a student put some copper turnings in a colourless solution, he observed that the solution gradually turned blue. The solution is most likely to be:

A pink violet salt on heating change to blue. It may be due to the presence of

A blue coloured salt of copper sulphate becomes white on heating. Give reason.

GRB PUBLICATION-SALT ANALYSIS-B. Dry Tests/Colour/Solubility/Heating Effects
  1. Which one of the following ions does not give borax bead test :

    Text Solution

    |

  2. Which of the following compound is formed in borax bead test ?

    Text Solution

    |

  3. A pink coloured salt turns blue on heating. The presence of which cati...

    Text Solution

    |

  4. Which anion forms the smallest number of insoluble salts?

    Text Solution

    |

  5. What is the colour of the flame test for sodium?

    Text Solution

    |

  6. Which salt is significantly more soluble in a strong acid than in wate...

    Text Solution

    |

  7. Solutions of which ion produce a red colour when vaporized in a Bunsen...

    Text Solution

    |

  8. A solid is insoluble in water, does not conduct electricity, and does ...

    Text Solution

    |

  9. Which compound forms a colourless solution when dissolved in H(2)O?

    Text Solution

    |

  10. When phenolphthalein is added to an aqueous solution containing one of...

    Text Solution

    |

  11. Which solute has the greatest solubility (in mol/L) in water at 25^(@)...

    Text Solution

    |

  12. Which solid is much more soluble in 1MHCI than in H(2)O?

    Text Solution

    |

  13. A metal dissolves in dilute HCI in the absence of air to form a pale g...

    Text Solution

    |

  14. A sample of white solid is known to be NaHCO(3), AgNO(3),Na(2)S, or Ca...

    Text Solution

    |

  15. A metal dissolves in 3.0M NaOH solution with evolution of gas to form ...

    Text Solution

    |

  16. Which metal reacts most vigorously with water ?

    Text Solution

    |

  17. Each of the following forms a coloured aqueosu solution except:

    Text Solution

    |

  18. The aqueous solution of the following salts will be coloured in the ca...

    Text Solution

    |

  19. The cation of the metal, which gives gree colour bead in cobalt charco...

    Text Solution

    |

  20. Colour of cobalt chloride solution is:

    Text Solution

    |