Home
Class 12
CHEMISTRY
Give reasons in two or three sentences o...

Give reasons in two or three sentences only for the following
"The species`[CuCl_(4)]^(2-)` exists, while`[CuI_(4)]^(2-)` does not" .

Text Solution

Verified by Experts

Iodide `(I^-)` ion is stronger reducing agent than chloride `(CI^-)` ion and therefore, reduces `Cu^(2+)` to `Cu^+`. As a result, `CuI_2` is converted into CuI and hence `[CuI_4]^(2-)` does not exist.
`2CuI_2 to 2CuI + I_2`
Promotional Banner

Topper's Solved these Questions

  • D AND F-BLOCK ELEMENTS

    MODERN PUBLICATION|Exercise COMPETITION FILE (MULTIPLE CHOICE QUESTION ((A) MULTIPLE CHOICE QUESTION WITH ONLY ONE CORRECT ANSWER))|35 Videos

  • D AND F-BLOCK ELEMENTS

    MODERN PUBLICATION|Exercise COMPETITION FILE (MULTIPLE CHOICE QUESTION ((B) MULTIPLE CHOICE QUESTION FROM COMPETITIVE EXAMINATION))|71 Videos

  • D AND F-BLOCK ELEMENTS

    MODERN PUBLICATION|Exercise REVISION EXERCISES ( LONG ANSWER QUESTION)|24 Videos

  • CHEMISTRY IN EVERYDAY LIFE

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|13 Videos

  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|20 Videos

Similar Questions

Explore conceptually related problems

Give reasons in two or three sentences only for the following "The species [CuCI_(4)]^(2-) exitsts, while [CuI_(4)]^(2-) does not" .

KHF_(2) exists while KHCl_(2) does not. Explain.

Given reasons in two or there sentences only for the following Hydrogen peroxide acts as an a reducing agent .

Which of the following does not give ppt with CrO_(4)^(-2)

Given reasons in two or three sentences only for (i) Bond dissociation energy of F_(2) is less than that of CI_(2) . (ii) Sulphur dioxide is a more powerful reducing agent in the alkaline medium than in acidic medium.

OF_(2) exists but OF_(4) does not because:

(a). A strip of Cu dissolved in FeCl_3 , however Cu cannot displace Fe. (b). [CuCl_4]^(2-) exists but [Cul_(4)]^(2-) does not. Why?

Statement 1 : Concentrated solution of CuCl_(2) in water is yellow in colour. Statement 2: The concentrated solution contains [CuCl_(4)]^(2-) ion and [Cu(H_(2)O_(4)]^(2+) ion.

Knowledge Check

  • Which of the following does not give ppt with CrO_(4)^(-2)

    A
    `Ca^(+2)`
    B
    `Cr^(+2)`
    C
    `Pb^(+2)`
    D
    `Ba^(+2)`

  • OF_(2) exists but OF_(4) does not because:

    A
    oxygen has no vacant 2d-orbitals
    B
    `OF_(4)` is unstable
    C
    oxygen is much smaller than fluorine
    D
    oxygen is highly inert

  • Statement 1 : Concentrated solution of CuCl_(2) in water is yellow in colour. Statement 2: The concentrated solution contains [CuCl_(4)]^(2-) ion and [Cu(H_(2)O_(4)]^(2+) ion.

    A
    Statement 1 is True, Statement2 is True. Statement2 is a correct explanation for Statement 1
    B
    Statement 1 is True, Statement 2 is True, Statement 2 is not a correct explanation for Statement 1
    C
    Statement -1 is True, Statement -2 is False
    D
    Statement -1 is False, statement -2 is True.
    • MODERN PUBLICATION-D AND F-BLOCK ELEMENTS-HIGHER ORDER THINKING SKILLS
    1. Give reasons in two or three sentences only for the following "The s...

      Text Solution

      |

    2. The second ionisation enthalpies of both Cr and Cu are higher than tho...

      Text Solution

      |

    3. First ionisation energy of copper is higher than those of alkali metal...

      Text Solution

      |

    4. Mercurous ion is written as Hg(2)^(2+) whereas cuprous ion is written ...

      Text Solution

      |

    5. In the titration of Fe^(2+) ions with KMnO4 in acidic medium, why is ...

      Text Solution

      |

    6. Why hydrated copper sulphate is blue while anhydrous copper sulphate i...

      Text Solution

      |

    7. Which of two : cuprous chloride or cupric chloride is coloured and why...

      Text Solution

      |

    8. A mixed oxide of iron and chromium, FeO.Cr2O3 is fused with sodium car...

      Text Solution

      |

    9. Calculate the magnetic moment (spin only) of manganese in K4 [Mn(NCS)...

      Text Solution

      |

    10. HgCl2 and SnCl2 cannot coexist together in an aqueous solution.

      Text Solution

      |

    11. In the transition series, starting from lanthanum La(Z=57), the next e...

      Text Solution

      |

    12. The 4d and 5d series of transition metals have more frequency metal-me...

      Text Solution

      |

    13. Between Na^(+) and Ag^(+) which is stronger Lewis acid and why?

      Text Solution

      |

    14. Identify A to E. Pyrolusite on heating with KOH in the presence of air...

      Text Solution

      |

    15. When a white crystalline compound X is heated with K2Cr2O7 and concent...

      Text Solution

      |

    16. (a) A blackish brown coloured solid 'A' when fused with an alkali meta...

      Text Solution

      |