The orbital angular momentum of a p-electron is given as :
Options
(a) h/(√2π) (b) √3 x (h/2π) (c) √(3/2) x h/π (d) √6 x h/2π
Correct Answer:
h/(√2π)
Explanation:
Orbital Angular Momentum […]
Oxygen is more electrnegative than sulphur, yet H₂S is acidic in nature while H₂O is neutral, because
Options
(a) H₂O molecule are associated due to intermolecular hydrogen bonding (b) H₂O has higher oiling […]
The electron configuration of an element is 1s²,2s²,2p⁶,3s²,3p⁶,3d⁵,4s¹. This represents its
Options
(a) cationic form (b) anionic form (c) ground state (d) excited state
Correct Answer:
ground state
Explanation:
This electron configuration is […]
In the periodic table from left to right in a period,the atomic volume
Options
(a) Decreases (b) Increases (c) Remains same (d) First decrease then increases
Correct Answer:
First decrease then increases
Explanation: […]
As we go from left to right in a period of the periodic table, gram atomic volume of the elements
Options
(a) will change indefinitely (b) decreases (c) increase at a constant rate […]
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
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