WorksheetsTopic 14 Bonding
Total questions: 27
Worksheet time: 2hrs 13mins
Which contain delocalised electrons?
I. C6H5OH
II. CH3COO−I
II. CO32−
I and II only
I and III only
II and III only
I, II and III
What is the electron domain geometry of Si in SiO2?
bent
linear
square planar
tetrahedral
Which combination correctly describes the geometry of BrF4-?
A
B
C
D
Which atom does not obey the octet rule?
C in CO2
F in BF3
O in H2O
S in SF6
Which species has delocalized electrons?
OH−
H2CO
CO2
CO32−
Which species has a square planar molecular geometry?
SF4
XeF4
CF4
PF4+
How many sigma (σ) and pi (π) bonds are present in hydrogen cyanide, HCN?
A
B
C
D
What is the number of sigma (σ) and pi (π) bonds in the molecule (NC)2C=C(CN)2?
A
B
C
D
Which can be represented with only one Lewis structure?
CH2O
C6H6
O3
NO3−
Which molecule has an expanded octet?
CO
CO2
SF2
SF4
Which overlap of atomic orbitals leads to the formation of only a sigma (σ) bond?
I. s − p
II. p − p
III. s − s
I and II only
I and III only
II and III only
I, II and III
How many sigma (σ) and pi (π) bonds are present in this molecule?
12 σ; 6 π
14 σ; 5 π
16 σ; 6 π
17σ; 5 π
Which combination describes the PH4+ ion?
A
B
C
D
Which combination describes the bonding and structure in benzoic acid, C6H5COOH?
3 electron domains;
6 π electrons;
6 σ bonds
3 electron domains;
8 π electrons;
15 σ bonds
4 electron domains;
6 π electrons;
6 σ bonds
4 electron domains;
8 π electrons;
10 σ bonds
Which species have resonance structures?
I. Ozone, O3
II. Carbon dioxide, CO2
III. Benzene, C6H6
I and II only
I and III only
II and III only
I , II and III
Which does not show resonance?
PO43–
C6H6
C6H12
O3
Which statement is correct?
Sigma bonds are formed only by the combination of s atomic orbitals.
Pi bonds can be formed in the absence of sigma bonds.
Pi bonds are formed parallel to the axis between atoms.
Pi bonds are formed only by the combination of hybrid orbitals.
Which species breaks the octet rule?
PCl3
BF4−
SCl4
NH4+
Which species has bond angles of 90°?
AlCl4-
Cl4-
NH4+
SiCl4
In which group do both compounds contain delocalized electrons?
C6H10, C5H10
Na2CO3, NaOH
NaHCO3, C6H6
NaHCO3, C6H12
What is the hybridization of the numbered atoms in ethanoic acid?
Atom 1: sp3
Atom 2: sp
Atom 3: sp2
Atom 1: sp3
Atom 2: sp2
Atom 3: sp
Atom 1: sp2
Atom 2: sp3
Atom 3: sp2
Atom 1: sp3
Atom 2: sp2
Atom 3: sp3
In which series are all carbon atoms sp2 hybridized?
C2H2; H2CO; HCOOH
C2H4; H2CO; HCOOH
C2H2; CO; HCN
C2H6; CH3OH; CH3OCH3
Which atom is sp2 hybridized?
C in H2CO
C in CO2
N in CH3NH2
O in H2O
How many carbon atoms are sp3, sp2 and sp hybridized in the molecule?
3 sp3
1 sp2
2 sp
2 sp3
1 sp2
3 sp
3 sp3
2 sp2
1 sp
3 sp3
2 sp2
2 sp
What is the hybridization of carbon and oxygen in methanol?
C is sp2
O is sp2
C is sp2
O is sp
C is sp
O is sp2
C is sp3
O is sp3
What is the hybridization of the circled carbon, oxygen and nitrogen atoms?
C: sp3 & tetrahedral
O: sp2 & trigonal planar
N: sp2 & trigonal planar
C: sp2 & trigonal planar
O: sp & linear
N: sp3 & tetrahedral
C: sp3 & tetrahedral
O: sp & linear
N: sp2 & trigonal planar
C: sp3 & trigonal pyramidal
O: sp2 & trigonal planar
N: sp3 & trigonal pyramidal
Which of the following is correct?
A
B
C
D
