Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET202122 Sep 2021Morning ShiftChemistryd and f Block ElementsActual

Which element from following exhibits various different oxidation states from +2 to +7 ?

Options

  1. AMn
  2. BCr
  3. CV
  4. DNi

Correct answer

A. Mn

Step-by-step solution

array lll & 2 c Outer electronic configuration Mn & 3 ~d ^5 4 ~S ^2 & (+2 to +7) Cr & 3 ~d ^5 4 ~S ^1 & (+1 to +6) V & 3 ~d ^3 4 ~S ^2 & (+2 to +5) Ni & 3 ~d ^8 4 ~S ^2 & (+2 to +4) array

Practice d and f Block Elements on Quantrex Academy →

More from d and f Block Elements

Pick out the correct option Assertion(A): Mercury is not considered as a transition element Reason (R): Mercury is a liquid 2026Which of the following does not correctly represent the order of the property indicated against it? 2026The element with the highest third ionisation enthalpy is: 2026The product and its colour when MnO₂ is fused with KOH in presence of O₂ : 2026The ion that has a spin only magnetic moment of 5.9 BM is: 2026Which one of the following species will impart colour to an aqueous solution? 2026The basic character of transition metal monoxides follows the order: 2026K ₂ Cr ₂ O ₇ on heating with aqueous NaOH gives ------------------------- 2026 Full d and f Block Elements list All MHT CET PYQs