Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 20206 SeptemberMorning Shift
Exam
JEE Main
Year
2020
Date
6 September
Shift
Morning Shift
Subject
Chemistry
Chapter
d and f Block Elements

JEE Main 2020 · 6 September · Morning Shift · Chemistry · d and f Block Elements

The set that contains atomic numbers of only transition elements,...

The set that contains atomic numbers of only transition elements, is :

Options

  1. A37,42,50,64
  2. B21,25,42,72
  3. C9,17,34,38
  4. D21,32,53,64

Correct answer

B. 21,25,42,72

Step-by-step solution

A transition element is defined as the one which has incompletely filled d orbitals in its ground state or in any one of the oxidation state. Zn(z=30),Cd(z=48),Hg(z=80)Zn ( z = 30 ) , Cd ( z = 48 ) , Hg ( z = 80 ) are not transition element.
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