Structure of ICl₂⁻ is
Options
(a) trigonal (b) octahedral (c) square planar (d) distorted trigonal pyraminal
Correct Answer:
distorted trigonal pyraminal
Explanation:
In ICl₂⁻, I is sp³d-hybridised. Due to the presence of lone […]
The electron was shown experimentally to have wave properties by
Options
(a) de Broglie (b) Davisson and Germer (c) N. Bohr (d) Schrodinger
Correct Answer:
Davisson and Germer
Explanation:
Davission and germer demonstrated […]
The elements having the electronic configuration [Kr] 4d¹°f¹⁴,5s² p⁶d²,6s² belongs to
Options
(a) s-block (b) p-block (c) d-block (d) f-block
Correct Answer:
d-block
Explanation:
Since the last electron enters in d-subshells. Therefore element […]
In which block, 106th element belongs?
Options
(a) s-block (b) p-block (c) d-block (d) f-block
Correct Answer:
d-block
Explanation:
Element, unnilhexium (Unh)₁o₆, belongs to d-block.
An ion has 18 electrons in the outermost shell, it is
Options
(a) Cu⁺ (b) Th⁴⁺ (c) Cs⁺ (d) K⁺
Correct Answer:
Cu⁺
Explanation:
Cu⁺ = 29 -1 electrons Electronic configuration – 1s² […]
Copper occurs naturally as Cu-63 and Cu-65. Given Atomic Weight of Carbon is 63.546, Which isotope is more abundant?
Options
(a) Cu-65 (b) Both Cu-63 and Cu-65 (c) Cu-63 (d) None
Correct Answer: […]
What is the nature of the bond between B and O in (C₂H₅)₂ OBH₃?
Options
(a) Covalent (b) Coordinate Covalent (c) ionic bond (d) Banana shaped bond
Correct Answer:
Coordinate Covalent
Explanation:
In […]
Which one of the following ions has electronic configuration[Ar] 3d⁶? (At. no: Mn=25, Fe=26, Co=27, Ni=28)
Options
(a) Ni³⁺ (b) Mn³⁺ (c) Fe³⁺ (d) Co³⁺
Correct Answer:
Co³⁺
Explanation:
Ni³⁺ (28) = [Ar] […]
The pair of species that has the same bond order in the following is:
Options
(a) O₂, B₂ (b) CO, NO⁺ (c) NO⁻, CN⁻ (d) O₂, N₂
Correct Answer:
CO, NO⁺
Explanation:
No. […]
Which of the following is isoelectronic?
Options
(a) CO2, NO₂ (b) NO₂⁻, CO₂ (c) CN⁻, CO (d) SO₂, CO₂
Correct Answer:
CN⁻, CO
Explanation:
Both CN⁻, CO has 14 electrons
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