WorksheetsChapter 4 : Chemical Bonding ( Set 1 )
Total questions: 15
Worksheet time: 15mins
What is the hybrid orbital of the central atom in the ion IF4-?
sp2
sp3
sp3d
sp3d2
One of the following is NOT the exceptional to octet rule:
OF2
SnCl2
ClO2
BBr3
The combination of elements which forms ionic bond is
boron – fluorine
carbon – chlorine
potassium – bromine
sulphur – oxygen
The total valence electrons in the phosphonium ion, is:
8
9
12
10
In the most plausible Lewis structure of ICl3 , the formal charge on I is:
0
+1
+2
-1
Of the following species, which one does not form coordinate bond?
H3O+
HO2-
NH4+
Al2Cl6
Pick the species which forms coordinate covalent bond
H3O+
ICl
BF3
CO32-
The bonding in the compound XY tends to be electrovalent bonding rather than covalent bonding if
the anionic size of Y is small
the charge on cation X is large
the ionisation ability of X and Y are the same
the electronegativity difference between X and Y is small
The number of all possible resonance structures of nitrate ion, NO3- is
2
3
4
no resonance
Choose the correct statement about ammonia molecule.
The molecular geometry is trigonal planar.
The H-N-H bond angles are greater than 109.5°.
The nitrogen atom utilises sp3-hybrid orbitals for s bonding.
The N-H bonds are polar but the molecule is non-polar.
Which of the species is non-polar but it forms polar bonds:
HCl
H2O
NO2
SO3
Which of the following molecules has nonzero dipole moment?
Ethene, C2H4
Dichloromethane, CH2Cl2
carbon disulfide, CS2
1,4-dichlorobenzene,
Which of the following shape cannot be derived from trigonal bypiramidal?
Linear
Distorted tetrahedral
T-shape
Trigonal pyramidal
Pick the polar molecule.
SO2
BF3
CO2
CCl4
The molecule that uses sp3 hybrid orbital on the central atom is
BCl3
ICl3
NCl3
PCl3
