For electron affinity of halogens, which of the following is correct?
For electron affinity of halogens, which of the following is correct?
Options
(a) Br > F (b) F > Cl (c) Br > Cl (d) F > I
Correct Answer:
F > I
Easy
Which of these have no unit?
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 […]
In TeCl₄, the central atom tellurium involves
In TeCl₄, the central atom tellurium involves
Options
(a) sp³-hybridisation (b) sp³d-hybridisation (c) sp³d²-hybridisation (d) dsp²-hybridisation
Correct Answer:
dsp²-hybridisation
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Structure of ICl₂⁻ is
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
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
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?
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
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
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?
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 […]