IIT JAM
   Top Resources
Shweta Thakur posted an Question
January 23, 2021 • 18:30 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Why after mn oxidation states of oxides decreases

why after Mn oxidation states of oxides decreases kkfku ljdoudsjyjtskkk

3 Answer(s) Answer Now
  • 0 Likes
  • 4 Comments
  • 0 Shares
  • Amol ashok pawar best-answer

    There is a decrease in the number of oxidation states from Mn to Zn. This is because the pairing of d-electrons occurs after Mn (Hund's rule). This pairing decreases the number of available unpaired electrons and hence, the number of oxidation states. Secondly, increase in atomic number results in greater pull of outermost electron to the nucleus. The energy spent to remove electrons cannot be compensated by chemical bond or lattice energy.

    eduncle-logo-app

    sir with increase in atomic no.there is more shielding effect by 3d to 4s so how attraction increases

    eduncle-logo-app

    attraction increases from nucleus for binding of electrons in atomic orbitals. if they are weaken then electron may escape.

  • comment-profile-img>
    Priyanshu kumar Best Answer

    There is a decrease in the number of oxidation states from Mn to Zn. This is because the pairing of d-electrons occurs after Mn (Hund's rule). This pairing decreases the number of available unpaired electrons and hence, the number of oxidation states decreases.

    eduncle-logo-app

    sir

  • comment-profile-img>
    Dinesh khalmaniya 1 best-answer

    There is a decrease in the number of oxidation states from Mn to Zn. This is because the pairing of d-electrons occurs after Mn (Hund's rule).

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

Sign Up to Download FREE Study Material Worth Rs. 500/-