Ncert Solutions Chemistry Class 11th
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4.57. Out of bonding and antibonding molecular orbitals, which one has lower energy and which one has higher stability?
4.57. Out of bonding and antibonding molecular orbitals, which one has lower energy and which one has higher stability?
4.57. Bonding molecular orbital has lower energy and higher stability.
Upvote 
4.56. Why N2 is more stable than O2? Explain on the basis of molecular orbital theory.
4.56. Why N2 is more stable than O2? Explain on the basis of molecular orbital theory.
4.56. Bond order of N2 (= 3) is greater than that of O2 (= 2).
Upvote 4.55. N2O is more polar than CO2.
This is because CO2 is linear and symmetrical. Its net dipole moment is zero.
N2O is linear but not symmetrical.
Upvote 4.54. Why ethyl alcohol is completely miscible with water?
4.54. Why ethyl alcohol is completely miscible with water?
4.54. This is because ethyl alcohol forms H-bonds with water.
Upvote 4.53. The electron pairs involved in the bond formation are known as bond pairs or shared pairs.
Upvote 4.52. Predict the shapes of the following molecules using VSEPR theory?
(i) BeCl2
(ii) SiCl4
4.52. Predict the shapes of the following molecules using VSEPR theory?
(i) BeCl2
(ii) SiCl4
4.51. Write the type of hybridisation involved in CH4, C2H4 and C2H2.
4.51. Write the type of hybridisation involved in CH4, C2H4 and C2H2.
4.50. Relation between bond order and stability of a molecule:
(a) Lower the bond order, greater is the stability
(b) Not related to each other
(c) Higher the bond order, greater is the stability
(d) None of the above
4.50. Relation between bond order and stability of a molecule:
(a) Lower the bond order, greater is the stability
(b) Not related to each other
(c) Higher the bond order, greater is the stability
(d) None of the above
4.50. (c) Higher the bond order, greater is the stability.
Upvote 4.49. Out of the following, intramolecular hydrogen bonding exists in:
(a) Water
(b) H2S
(c) 4-nitrophenol
(d) 2-nitrophenol
4.49. Out of the following, intramolecular hydrogen bonding exists in:
(a) Water
(b) H2S
(c) 4-nitrophenol
(d) 2-nitrophenol
4.48. Which one is diamagnetic among NO+, NO and NO?
(a) NO+
(b) NO
(c) NO–
(d) None of these
4.48. Which one is diamagnetic among NO+, NO and NO?
(a) NO+
(b) NO
(c) NO–
(d) None of these