In a given atom no two electrons can have the same values for all the four quantum numbers.This is called
Options
(a) Hund’s Rule (b) Aufbau principle (c) Uncertainty principle (d) Pauli’s Exclusion […]
The number of spherical nodes in 3p orbitals are
Options
(a) one (b) three (c) none (d) two
Correct Answer:
one
Explanation:
No. of radial nodes in 3p-orbital= (n – l – 1) […]
The pair of species with the same bond order is:
Options
(a) O₂²⁻, B₂ (b) O₂⁺, NO⁺ (c) NO, CO (d) N₂, O₂
Correct Answer:
O₂²⁻, B₂
Explanation:
No explanation available. Be the […]
Which of the following is paramagnetic?
Options
(a) O₂⁻ (b) CN⁻ (c) NO⁺ (d) CO
Correct Answer:
O₂⁻
Explanation:
O₂⁻ (17) = σ1s², σ*1s², σ2s², σ*2s², σ2pₖ², π2pᵢ² = π2pⱼ², π*2pᵢ² = π*2pⱼ¹
Bond order of 1.5 is shown by:
Options
(a) O₂⁺ (b) O₂⁻ (c) O₂²⁻ (d) O₂⁻
Correct Answer:
O₂⁻
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Which of the following has the minimum bond length ?
Options
(a) O₂⁺ (b) O₂⁻ (c) O₂²⁻ (d) O₂
Correct Answer:
O₂⁺
Explanation:
Bond order is defined as half of the difference between […]
The correct order in which the O–O bond length increases in the following is
Options
(a) H₂O₂ < O₂ < O₃ (b) O₃ < H₂O₂ < O₂ (c) O₂ < O₃ < H₂O₂ […]
Highest electron affinity is shown by
Options
(a) O⁻ (b) F⁻ (c) Cl₂ (d) F₂
Correct Answer:
O⁻
Explanation:
Molecules of F₂, Cl₂ and anion F⁻, all have stable inert has configuration. Thus, […]
Which of the following has the highest electron affinity?
Options
(a) F⁻ (b) O⁻ (c) O (d) Na
Correct Answer:
O
Explanation:
As the size of atom decreases, a larger amount of energy […]
If n = 6, the correct sequence for filling of electrons will be:
Options
(a) ns→(n–2)f→(n–1)d→np (b) ns→(n–1)d→(n–2)f→np (c) ns→(n–2)f→np→(n–1)d (d) ns→np(n–1)d→(n–2)f
Correct Answer:
ns→(n–2)f→(n–1)d→np
Explanation:
No explanation available. Be the first to […]
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