If the atomic number of an element is 33, it will be placed in the periodic table in the
Options
(a) First group (b) Third group (c) Fifth group (d) Seventh group
Correct […]
An atom has electronic configuration 1s²2s²2p⁶3s²3p⁶3d³4s², you will place it in which group?
Options
(a) Fifth (b) Fifteenth (c) Second (d) Third
Correct Answer:
Fifth
Explanation:
The electronic configuration clearly suggest that it […]
Among K, Ca,Fe and Zn the element which can form more than one binary compound with chlorine is
Options
(a) Fe (b) Zn (c) K (d) Ca
Correct Answer:
Fe
Explanation:
Among the […]
Which one of the following orders is not in accordances with the property stated against it?
Options
(a) F₂ > Cl₂ > Br₂ > I₂ : Oxidising power (b) HI > HBr > […]
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
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
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
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 […]
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