The number of spherical nodes in 3p orbitals are
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) […]
Structure of Atom
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 […]
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 […]
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 […]
According to MO theory which of the following lists ranks the nitrogen species
According to MO theory which of the following lists ranks the nitrogen species in terms of increasing bond order?
Options
(a) N₂²⁻ < N₂⁻ < N₂ (b) N₂ < N₂²⁻ < N₂⁻ (c) […]
Set of isoelectronic species is
Set of isoelectronic species is
Options
(a) N₂,CO₂,CN⁻,O (b) N, H₂S, CO (c) N₂,CO,CN⁻,O₂⁺² (d) Cl,Mg,Ca
Correct Answer:
N₂,CO,CN⁻,O₂⁺²
Explanation:
Isoelectronic means equal electric, which means the atom or group have the same number […]
Which of the following is non-permissible?
Which of the following is non-permissible?
Options
(a) n=4, l=3, m=0 (b) n=4, l=2, m=1 (c) n=4, l=4, m=1 (d) n=4, l=0, m=0
Correct Answer:
n=4, l=4, m=1
Explanation:
No explanation available. Be […]
For which one of the following sets of four quantum numbers, an electron will have
For which one of the following sets of four quantum numbers, an electron will have the highest energy?n=3, l=2, m=1, s=1/2
Options
(a) n=4, l=2, m=-1, s=1/2 (b) n=4, l=1, m=0, s=-1/2 (c) […]
Which of the following is not permissible arrangement of electrons in an atom?
Which of the following is not permissible arrangement of electrons in an atom?
Options
(a) n = 5, l = 3, m = 0, s = +1/2 (b) n = 3, l= 2, […]
The orientation of an atomic orbital is governed by
The orientation of an atomic orbital is governed by
Options
(a) Spin quantum number (b) Magnetic quantum number (c) Principal quantum number (d) Azimuthal quantum number
Correct Answer:
Magnetic quantum number
Explanation:
Magnetic […]