Which of othe following is paramagnetic?
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
Memory
Bond order of 1.5 is shown by:
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 ?
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
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
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?
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:
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 […]
The element, with atomic number 118, will be
The element, with atomic number 118, will be
Options
(a) alkali (b) noble gas (c) lanthanide (d) transition element
Correct Answer:
noble gas
Explanation:
Electronic configuration of element with atomic number 118 will […]
Choose isosteres from the following.
Choose isosteres from the following.
Options
(a) NO₂⁻ and PO₄³⁻ (b) NO₂⁻ and O₃ (c) CO₂,N₂O,NO₃⁻ (d) ClO₄⁻ and OCN⁻
Correct Answer:
NO₂⁻ and O₃
Explanation:
NO₂⁻ and O₃ are isosteres because both […]
The ionisation energy of nitrogoen is more than that of oxygen because
The ionisation energy of nitrogoen is more than that of oxygen because
Options
(a) nitrogen has half-filled p-orbitals (b) nitrogen is left ot the oxygen in the same period of the periodic table […]