WorksheetsChemical Bonding: Lewis Structures & VSEPR Theory
Total questions: 10
Worksheet time: 7mins
What is the central atom in nitrate ion (NO3- )
3
O
N
none
The following species are exception to octet rule EXCEPT
I3 −
NH4 +
XeF4
SF4
The following species can form resonance structures EXCEPT
SO2
CO3 2−
CHO2 −
H2O
A triple bond formed when two atoms share three electrons, as in nitrogen molecule.
TRUE
FALSE
VSEPR theory is used to predict
the number of unshared pairs of electrons in a Lewis structure.
the number of multiple bonds in a Lewis structure.
the three-dimensional geometry of a molecule.
the three-dimensional crystal lattice structure of ionic compounds.
The basic molecular shape in bromine trifluoride (BrF3) is trigonal bipyramidal.
TRUE
FALSE
What is the molecular shape of a silicon dioxide molecule?
linear
trigonal planar
bent
tetrahedral
Which of the following correctly matches a compound with its molecular geometry?
Water (H2O) : linear
Carbon dioxide (CO2): tetrahedral
Ammonia (NH3): trigonal planar
Methane (CH4): tetrahedral
AB4E is a symbol for molecular shape __________________
linear
T-shaped
seesaw
trigonal bipyramidal
Which of the following shapes has no unshared pairs of electrons on the central atom?
Trigonal pyramidal
Bent
Square planar
Octahedral
