Back to CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

NEET UG CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

1 Easy

1 of 1

Application +4 | -1

Set of isoelectronic species is

View answer and explanation

Correct option: C

{N}_2, {CO}, {CN}^{-}, {O}_2^{+2}

Option C (

{N}_2, {CO}, {CN}^{-}, {O}_2^{+2})

is correct because all species have the same number of electrons (14).

More Questions from CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

Practice All Chapter MCQs →

The elements with zero electron affinity are S-I:

\mathrm{Cu}^{+2}

paramagnetic.

S-II: All the orbitals present in

\mathrm{Cu}^{+2}

ion are doubly occupied. Which of the following is the most electropositive element? The law of Octaves is not applicable to: Assertion (A): Mendeleev's arranged elements in horizontal rows and vertical columns.
Reason (R): Mendeleev's ignored the order of atomic weight thinking that the atomic measurements might be incorrect. Which of the following electronic configuration does not belong to same block as others?