Valence Bond Theory MCQ

Test your knowledge with important Valence Bond Theory MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Valence Bond Theory MCQs on Bissoy. Bissoy App

• Which of the following is not a homonuclear diatomic molecule?
  ক

  H2

  খ

  N2

  গ

  O2

  ঘ

  HCl
• Valence bond theory explains the overlapping of atomic orbitals.
  ক

  True

  খ

  False
• A positive overlap is same as ________
  ক

  out-phase overlap

  খ

  negative overlap

  গ

  zero overlap

  ঘ

  in-phase overlap
• A __________ overlap doesn’t result in the formation of a bond.
  ক

  positive

  খ

  negative

  গ

  zero

  ঘ

  rational
• A pi bond is stronger than a sigma bond.
  ক

  True

  খ

  False
• The pi-bond involves __________
  ক

  axial overlapping

  খ

  side-wise overlapping

  গ

  end to end type of overlapping

  ঘ

  head-on overlapping
• Which type of bond is present between hydrogens in hydrogen molecule?
  ক

  Sigma bond

  খ

  Pi bond

  গ

  Ionic bond

  ঘ

  Metallic bond
• What is the electronic configuration of carbon in it’s excited state?
  ক

  1s22s22p4

  খ

  1s22s22p3

  গ

  1s22s22p5

  ঘ

  1s22s12p4
• The strength of covalent ___________ extent of overlapping of orbitals.
  ক

  may be or may not be related

  খ

  is independent on

  গ

  is dependent on

  ঘ

  is not related to
• The bond enthalpy of ___________ molecule is 435.8 kJ mol-1.
  ক

  Hydrogen

  খ

  Oxygen

  গ

  Nitrogen

  ঘ

  Helium
• The formation of odd electron molecules such as H2+, NO, O3 is also explained in VBT.
  ক

  True

  খ

  False
• Which orbital would form a more stronger bond if both of them have identical stability?
  ক

  The one which is less directionally concentrated

  খ

  The one which is more directionally concentrated

  গ

  Both will be equally strong

  ঘ

  It differs from atom to atom
• According to VBT, the direction of a bond which is formed due to overlapping will be _____________
  ক

  In the same direction in which orbitals are concentrated

  খ

  In the opposite direction in which orbitals are concentrated

  গ

  Perpendicular to the direction in which orbitals are concentrated

  ঘ

  None of the mentioned
• The Valence Bond Theory does not explain the paramagnetic nature of oxygen molecule.
  ক

  True

  খ

  False
• The p-orbital is in the shape of a _____________
  ক

  Sphere

  খ

  Dumbbell

  গ

  Pear-shaped lobe

  ঘ

  None of the mentioned
• The s-orbital does not show preference to any direction because _____________
  ক

  It is the smallest orbital

  খ

  It is present in every atom

  গ

  It is spherically symmetric

  ঘ

  It is the first orbital
• According to VBT, the formation of a stable bond requires _____________
  ক

  The electrons should have opposite spins

  খ

  The two atoms should be close to each other

  গ

  The greater overlapping of the electron clouds

  ঘ

  All of the mentioned
• Valence Bond Theory was developed in the year?
  ক

  1916

  খ

  1927

  গ

  1930

  ঘ

  1932