WorksheetsMolecular Theory Quiz
Total questions: 10
Worksheet time: 5mins
Which of the following species has 120° bond angles?
NCl3
PH3
ClF3
BCl3
Find the molecule in which the central atom is having one lone pair of electrons
NH3
PCl5
H2O
CH4
Find the molecule with the least bond angle
BeF2
CH4
NH3
H2O
In BrF3, lone pairs are present at the equatorial positions. This is to minimise
bp-bp repulsion only
lp-lp repulsion only
lp-bp repulsion only
both (b) and (c)
Which of the following statements is true regarding the molecular orbital theory for homonuclear diatomic molecules?
The number of molecular orbitals formed is less than the number of atomic orbitals combined.
Bonding molecular orbitals have higher energy than their corresponding antibonding molecular orbitals.
In a homonuclear diatomic molecule, the bonding molecular orbital is formed by the constructive interference of atomic orbitals.
Antibonding molecular orbitals are lower in energy than bonding molecular orbitals.
In molecular orbital theory, the bond order of a diatomic molecule is calculated as:
(Number of electrons in bonding orbitals + Number of electrons in antibonding orbitals) / 2
(Number of electrons in bonding orbitals - Number of electrons in antibonding orbitals) / 2
(Number of electrons in bonding orbitals - Number of electrons in antibonding orbitals)
(Number of electrons in bonding orbitals + Number of electrons in antibonding orbitals)
Which molecular orbital is formed from the linear combination of two 1s atomic orbitals in a homonuclear diatomic molecule like H₂?
σ*2s
π2p
σ1s
σ*1s
Which of the following diatomic molecules is paramagnetic according to molecular orbital theory?
N
O₂
F₂
H₂
Which of the following molecules can form hydrogen bonds?
CH₄
HCl
NH₃
C₂H2
Which of the following statements about hydrogen bonding is incorrect?
Hydrogen bonding is a type of covalent bond.
Hydrogen bonds are generally weaker than ionic and covalent bonds.
Hydrogen bonding plays a significant role in determining the properties of water.
Hydrogen bonds can occur between different molecules or within different parts of a single molecule.
