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Chemical Bonding
Test Description: A simple quiz on Chemical Bonding to revise your concepts.
Instructions: Answer all questions to get your test result.
1) Of the following molecules, which is a polar molecule?
A
Dichloromethane
B
Benzene
C
Hexane
D
Methane
2) Which of the following simple covalent molecules has 3 bond pairs and no lone pairs of electrons?
A
Sulfur Dioxide Gas
B
Carbon Dioxide Gas
C
Nitrogen Gas
D
Oxygen Gas
3) Why is the melting point of Magnesium Flouride much higher as compared to Sulfur Diflouride?
A
This is because the ions in Magnesium Flouride are held by strong electrostatic attracton forces.
B
This is because Magnesium is more electronegative as compared to Sulfur.
C
This is because the Van De Waals Forces in Magnesium Flouride is stronger than Sulfur Dioxide.
D
This is because the electrostatic repulsion between the electrons of Magnesium Flouride is greater.
4) Which of the following is not considered a intermolecular force?
A
Lewis Bonds
B
Hydrogen Bonds
C
Induced Dipole-Dipole Bond
D
Permanent Dipole-Dipole Bond
5) Which of the following is not a property displayed generally by ionic compounds?
A
Not brittle
B
High Boiling Point
C
Does not conduct electricity in solid state
D
High Melting Point
6) Which of the following statement about Sigma and Pi Bonds is true?
A
Pi Bonds are stronger than Sigma Bonds
B
Sigma Bonds happens when orbitals overlaps head-on.
C
A triple covalent bond will consist of 2 sigma bonds and 1 pi bond.
D
A single covalent bond will consist only of a pi bond.
7) Which of the following elements is the most electronegative?
A
Oxygen
B
Nitrogen
C
Flourine
D
Hydrogen
8) Why is tetrachloromethane not a polar molecule when it has polar bonds?
A
Water, which is a polar compound, is not present
B
Dipole moments in tetrachloromethane cancels out each other
C
There are 4 Chlorine atoms but only 1 Carbon atom in a tetrachloromethane molecule
D
Chlorine in tetrachlormethane is more electronegative as compared to Carbon
9) Hydrogen Bonds cannot occur between which molecules
A
Water
B
Hydrogen Flouride
C
Ammonia
D
Carbon Disulfide
10) What is the shape of a Iodine Pentaflouride Molecule?
A
Square Pyramidal
B
Trigonal Bipyramidal
C
Tetrahedral
D
Octahedral
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