Four diatomic species are listed below. Identilfy the correct order in which
Four diatomic species are listed below. Identilfy the correct order in which the bond order is increasing in them:
Options
(a) NO < O₂⁻ < C₂²⁻ < He₂⁺ (b) O₂⁻ < NO < […]
Chemistry
Elements of which of the following groups will form anions most readily ?
Elements of which of the following groups will form anions most readily ?
Options
(a) Oxygen family (b) Nitrogen family (c) Halogens (d) Alkali metals
Correct Answer:
Halogens
Explanation:
Electron affinity values are […]
Which contains both polar and non-polar covalent bonds?
Which contains both polar and non-polar covalent bonds?
Options
(a) NH₄Cl (b) H₂O₂ (c) HCN (d) CH₄
Correct Answer:
H₂O₂
Explanation:
In H₂O₂, O–O bond is non-polar while O–H bond is polar.
Which one of the following moleculescontains no π bond?
Which one of the following molecules contains no π bond?
Options
(a) H₂O (b) SO₂ (c) NO₂ (d) CO₂
Correct Answer:
H₂O
Explanation:
All the molecules have O atom with lone pairs, but […]
Which combination is best explained by the coordinate covalent bond?
Which combination is best explained by the coordinate covalent bond?
Options
(a) H⁺ + H₂O (b) Cl + Cl (c) Mg + 1/2 O₂ (d) H₂ + I₂
Correct Answer:
H⁺ + H₂O
The orbital angular momentum of a p-electron is given as :
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
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
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
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
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 […]