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Worksheets11/19 SI Session
Total questions: 20
Worksheet time: 10mins
An atom with 4 electron domains has a ________ electron geometry and (based on lone pairs) could have either a ____________, ______________, or ______________ molecular geometry
Tetrahedral; tetrahedral, trigonal planar, linear
Trigonal Planar; trigonal planar, linear, bent
Trigonal Pyramidal; tetrahedral, linear, trigonal planar
Tetrahedral; tetrahedral, trigonal pyramidal, bent
The bond angles in ammonia (NH3) are _________
approximately 120
approximately 109.5
less than 109.5
greater than 109.5
Methane has ________ bonds and is ___________ because the dipole moments of the bonds _________
nonpolar, nonpolar, cancel out
polar, nonpolar, don't cancel out
nonpolar, polar, cancel out
polar, nonpolar, cancel out
Seesaw geometries are always polar
True
False
Tetrahedral molecular geometries are always nonpolar
False
True
The central atom on sulfur tetrafluoride has ___ lone pairs, the molecular geometry is ___, and the molecule is _____
0, tetrahedral, nonpolar
1, seesaw, polar
0, seesaw, nonpolar
1, tetrahedral, polar
Each atom in carbon monoxide is _____ hybridized
sp3
sp2
sp
sp3d
The carbon atom in methane is _____ hybridized, meaning there are ____ hybrid orbitals and ____ unhybridized orbitals
sp3, 4, 0
sp2, 3, 1
sp, 2, 2
sp-1, 1, 3
The hybridization for an atom with 3 single bonds and 3 lone pairs is _____
sp2
sp3
sp3d
sp3d2
In the molecule CNO1- (carbon is the central atom), the bond between C and N has ___ sigma bonds and ___ pi bonds, and the bond between C and O has ___ sigma bonds and ___ pi bonds
1, 1, 1, 1
1, 0, 1, 2
1, 2, 1, 0
1, 0, 1, 0
Ozone (O3) has ____ electron geometry, ___ molecular geometry, a bond angle of _____, each oxygen is ____ hybridized, and there are ___ sigma bonds and ___ pi bonds in the whole molecule
trigonal pyramidal, bent, (less than 109.5), sp2, 2, 2
trigonal planar, bent, (greater than 120), sp2, 1, 3
tetrahedral, bent, (approximately 109.5), sp3, 3, 1
trigonal planar, bent, (less than 120), sp2, 2, 2
Pi bonds ALWAYS form between unhybridized p orbitals
True
False
A phosphate ion has ____ molecular geometry and is _____ due to _____
tetrahedral, polar, uneven dipole moments
trigonal pyramidal, nonpolar, dipole moments that cancel out
tetrahedral, polar, resonance creating equal bonds
tetrahedral, nonpolar, resonance creating unequal bonds
Which of the following statements is correct?
A lone pair takes up more space than a triple bond and a single bond takes up more space than a double bond
A triple bond takes up more space than a single bond and a double bond takes up more space than a lone pair
A lone pair takes up more space than a triple bond and a triple bond takes up more space than a double bond
A molecule with 5 electron domains has a molecular geometry of T-shaped
Always true
Always false
Sometimes True
Never true
Never false
For electron geometries, octahedral has ___ domains and tetrahedral has ___ domains
8, 4
4, 3
8, 3
6, 4
Xenon Tetrafluoride exhibits this molecular geometry:
Tetrahedral
Octahedral
Square Bipyramidal
Square Planar
Phosphorus pentachloride has the following bond angles:
120
90
109.5, 120
90, 120
The nitrogen in nitrate is ___ hybridized and exhibits ___, ___ geometry
sp3, nonpolar, tetrahedral
sp2, polar, trigonal planar
sp3, nonpolar, trigonal planar
sp2, nonpolar, trigonal planar
Xenon tetroxide has ___ sigma bonds in the whole molecule and ___ pi bonds, and exhibits a ____, ____ geometry
4, 0; polar, tetrahedral
8, 0; nonpolar, trigonal planar
4, 4; nonpolar, tetrahedral
2, 6; polar, trigonal planar
