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 […]
Chemistry
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 […]
Which of the following does not represent the correct order of the properties
Which of the following does not represent the correct order of the properties indicated
Options
(a) Ni²⁺> Cr²⁺> Fe²⁺> Mn²⁺(size) (b) Sc > Ti > Cr > Mn (size) (c) Mn²⁺ > Ni²⁺ […]
Which of the following represents correct decreasing order of polarity?
Which of the following represents correct decreasing order of polarity?
Options
(a) NH₃ > PH₃ > AsH₃ > SbH₃ (b) NH₃ >SbH₃ > AsH₃ > PH₃ (c) SbH₃ > AsH₃ > PH₃ > […]
Which one of the following ionic species has the greatest proton affinity to form
Which one of the following ionic species has the greatest proton affinity to form stable compound?
Options
(a) NH₂⁻ (b) F⁻ (c) I⁻ (d) HS⁻
Correct Answer:
NH₂⁻
Explanation:
Proton affinity decreases in […]