profile-img
Imdadul Haque posted an Question
September 14, 2020 • 03:12 am 30 points
  • IIT JAM
  • Chemistry (CY)

29. for which of the following ions is the colour in aqueous solution not causcd by any d-d transition? (a) mno (b) vo (c) mno (d) mn

29. For which of the following ions is the colour in aqueous solution not causcd by any d-d transition? (a) MnO (b) vo (c) MnO (d) Mn

1 Answer(s) Answer Now
  • 0 Likes
  • 3 Comments
  • 0 Shares
  • comment-profile-img>
    Abhishek kumar singh

    colour of MnO4- ion is due to charge transfer spectra

  • comment-profile-img>
    Priyanshu kumar best-answer

    Mno4- option A is correct

    eduncle-logo-app

    here charge transfer takes place 👇VO2+ is also coloured due to d-d transition

    eduncle-logo-app

    Not d d transition

    eduncle-logo-app

    Manganese in +7 oxidation state in Mno4-

    eduncle-logo-app

    no d electron..so no d d transition

    eduncle-logo-app

    but this complex is coloured due to CT spectra

    eduncle-logo-app

    In option C there is Mn+6...one d electron..

    eduncle-logo-app

    so d d transition

    eduncle-logo-app

    in option D..Mn 3+... d4 configuration...so d d transition

    eduncle-logo-app

    Hope you got this dear

    eduncle-logo-app

    please ask if any doubt😊🙏

  • Suman Kumar

    option A is

    eduncle-logo-app

    MnO4- is colored due to charge transfer spectra

    eduncle-logo-app

    Here no d-d transition

    eduncle-logo-app

    Mn is in +7 Oxidation State

    eduncle-logo-app

    Mn⁷+ is d⁰ configuration

    eduncle-logo-app

    d orbital me eletron hi nahi hai to d-d transition kaisa

    eduncle-logo-app

    Okay Sir ,,,Thank You so much

    eduncle-logo-app

    please mark thankyou or best answer

whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers