WorksheetsCovalent bond
Total questions: 32
Worksheet time: 16mins
The covalent bond forms between
a metal and nonmetal
a nonmetal and nonmetal
a metal and metal
Name the bond in which the orbitals overlap end-to end
Ionic bond
sigma bond
pi bond
As bond length increase the strength...
increases
decreases
no change
The number of pairs of electrons shared in triple covalent bond
Two
Three
Six
How do covalent bonds form?
Donating & receiving valence e- between atoms.
Opposite slight charges attract each other between compounds.
Sharing valence e- between atoms.
Which of the following is NOT formed by a covalent bond?
K2S
H2O
I2
CO2
What determines whether a molecule is polar?
type of atoms and shape of molecule
mass of atoms and number of valence electrons
type and mass of atoms
ionization energy and number of covalent bonds
When atoms form a polar covalent bond, the atom with the greater attraction for electrons has a partial positive charge. The other atom has a partial negative charge.
True
False
•A covalent bond in which electrons are shared equally is called a polar covalent bond.
True
False
In a carbon dioxide (CO2) molecule, the polar bonds between the carbon atom and the oxygen atoms cancel out because the molecule is linear.
True
False
In a water (H2O) molecule, the polar bonds between the oxygen atom and the hydrogen atoms do not cancel out because the molecule is bent.
True
False
What molecule could this be?
CH4
CO2
PCl5
BF3
What molecule could this be?
CO2
NH3
H2S
CH4
What is the bond angle of a tetrahedral structure?
90 Degrees
109.5 Degrees
120 Degrees
180 Degrees
Which of these is the shape of BF3?
What is the molecular geometry of a molecule with 2 bonding pairs and 2 lone pairs?
Linear
Bent
Trigonal Pyramidal
Tetrahedral
This carbon atom undergoes_________.
sp hybridization
sp2 hybridization
sp3 hybridization
dsp3 hybridization
What is the hybridization of a central atom in a linear molecule?
sp
sp2
sp3
sp3d
What is the hybridization of the central atom in this molecule?
sp
sp2
sp3
sp4
The molecule that uses sp3d hybrid orbital on the central atom is___________.
BCl3
NCl3
ICl3
PCl3
Molecule CO2
undergoes sp2 hybridisation
has 2 σ bond and 2 π bond
undergoes sp3d hybridisation
is trigonal planar molecule
What is the hybridization of the Carbon atom indicated by the arrow?
sp hybridization
sp2 hybridization
sp3 hybridization
dsp3 hybridization
The hybridisation of the central atom in the following molecules is same EXCEPT
NH3
H2O
AlCl3
C2H6
