Which of these have no unit?
Options
(a) Electronegativity (b) Electron affinity (c) Ionisation energy (d) All of these
Correct Answer:
Electronegativity
Explanation:
Electronegativity is unit less quality. Pauling scaleand Mulliken scale are […]
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.
Which one of the following oxides is expected to exhibit paramagnetic behaviour?
Options
(a) CO₂ (b) SiO₂ (c) SO₂ (d) ClO₂
Correct Answer:
ClO₂
Explanation:
It is because of odd number of electrons […]
Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is :
Options
(a) Ca < Mg < P< Cl (b) Mg < Ca < Cl < P (c) […]
Which one of the following elements has the maximum electron affinity?
Options
(a) F (b) Cl (c) Br (d) I
Correct Answer:
Cl
Explanation:
Chlorine hasmaximum electron affinity. Fluorine although have highest electronegativity […]
Identify the correct order of the size of the following elements: Ca, K, Ar,Cl,S
Options
(a) Ca²⁺< K⁺< Ar < Cl⁻ < S²⁻ (b) Ar < Ca²⁺< K⁺< Cl⁻< S²⁻ (c) Ca²⁺< Ar […]
The correct order of ionisation energy for comparing carbon, nitrogen and oxygen is
Options
(a) CO (b) C>NN>O (d) C>N
Chemical properties of lithium and magnesium are similar because
Options
(a) these belongs to same group (b) shows disgonal relationship (c) both has same ionisation potential (d) both has same electron affinity
Correct […]
The set representing the correct order for the first ionisation potential is
Options
(a) K > Na > Li (b) Be > Mg > Ca (c) B > C > N (d) Ge […]
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