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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
Methane
B
Dichloromethane
C
Benzene
D
Hexane
2) Which of the following simple covalent molecules has 3 bond pairs and no lone pairs of electrons?
A
Carbon Dioxide Gas
B
Sulfur Dioxide Gas
C
Oxygen Gas
D
Nitrogen 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
Permanent Dipole-Dipole Bond
B
Lewis Bonds
C
Induced Dipole-Dipole Bond
D
Hydrogen Bonds
5) Which of the following is not a property displayed generally by ionic compounds?
A
High Boiling Point
B
High Melting Point
C
Does not conduct electricity in solid state
D
Not brittle
6) Which of the following statement about Sigma and Pi Bonds is true?
A
A triple covalent bond will consist of 2 sigma bonds and 1 pi bond.
B
Pi Bonds are stronger than Sigma Bonds
C
A single covalent bond will consist only of a pi bond.
D
Sigma Bonds happens when orbitals overlaps head-on.
7) Which of the following elements is the most electronegative?
A
Oxygen
B
Nitrogen
C
Hydrogen
D
Flourine
8) Why is tetrachloromethane not a polar molecule when it has polar bonds?
A
Dipole moments in tetrachloromethane cancels out each other
B
Chlorine in tetrachlormethane is more electronegative as compared to Carbon
C
Water, which is a polar compound, is not present
D
There are 4 Chlorine atoms but only 1 Carbon atom in a tetrachloromethane molecule
9) Hydrogen Bonds cannot occur between which molecules
A
Carbon Disulfide
B
Water
C
Hydrogen Flouride
D
Ammonia
10) What is the shape of a Iodine Pentaflouride Molecule?
A
Octahedral
B
Tetrahedral
C
Trigonal Bipyramidal
D
Square Pyramidal
*select an answer for all questions
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