Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 201910 AprilEvening Shift
Exam
JEE Main
Year
2019
Date
10 April
Shift
Evening Shift
Subject
Chemistry
Chapter
d and f Block Elements

JEE Main 2019 · 10 April · Evening Shift · Chemistry · d and f Block Elements

The highest possible oxidation states of uranium and plutonium,...

The highest possible oxidation states of uranium and plutonium, respectively, are

Options

  1. A44 and 66
  2. B77 and 66
  3. C66 and 44
  4. D66 and 77

Correct answer

D. 66 and 77

Step-by-step solution

The electronic configuration of Uranium is,
[Rn]5f36d17s2\left[Rn\right]5{f}^{3}6{d}^{1}7{s}^{2}

Hence, the maximum electrons it can lose is 3+1+2=63 + 1 + 2 = 6 (Inner electrons do not come out due to stability)

The electronic configuration of plutonium is, [Rn]5f67s2\left[Rn\right]5{f}^{6}7{s}^{2}

It exhibits a maximum oxidation state of +7+ 7.
Practice d and f Block Elements on Quantrex Academy →

More from d and f Block Elements

Given below are two statements: Statement I: The number of pairs among [Ti^ 4+ , V^ 2+ ]… JEE Main 2026Given below are two statements for catalytic properties of transition metals. Statement… JEE Main 2026The correct order of first (Δ_i H_1) and second (Δ_i H_2) ionisation enthalpy values of… JEE Main 2026The correct statements among the following are. A. Basic vanadium oxide is used in the… JEE Main 2026Given below are two statements : Statement I: Presence of large number of unpaired… JEE Main 2026A paper dipped in a dil. H_2SO_4 solution of ' X ' upon treatment with SO_2 gas turns… JEE Main 2026Which of the following is NOT a physical or chemical characteristics of interstitial… JEE Main 2026Pairs of elements with the same number of electrons in their respective 4f orbital are… JEE Main 2026 Full d and f Block Elements list All JEE Main PYQs