Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
KCET2018Chemistryd and f Block Elements

The electronic configuration of transition element " ( X ) ", is ( [A r] 3 d⁵ ), oxidation state is ( +3 ). What is its atomic number?

Options

  1. A24
  2. B25
  3. C26
  4. D27

Correct answer

C. 26

Step-by-step solution

Electronic configuration =[A r] 3 d⁵ Number of electrons in element X is 18+5+3(O . S)=26 e⁻ s . Therefore, atomic number of the element X is 26, that is, X element is Fe.

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 KCET PYQs