Which of the following is not an example of a van der Waals' force?
A - Scottish Highers Chemistry - Question 4 - 2015
Question 4
Which of the following is not an example of a van der Waals' force?
A. Covalent bond
B. Hydrogen bond
C. London dispersion force
D. Permanent dipole - permanent dipo... show full transcript
Worked Solution & Example Answer:Which of the following is not an example of a van der Waals' force?
A - Scottish Highers Chemistry - Question 4 - 2015
Step 1
Identify the forces listed
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Answer
The options provided include:
Covalent bond
Hydrogen bond
London dispersion force
Permanent dipole - permanent dipole attraction
To determine which of these is not a van der Waals' force, we need to understand each term.
Step 2
Assess each option
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Answer
Covalent bond: This is a strong bond formed by the sharing of electrons between atoms. It is not categorized as a van der Waals' force.
Hydrogen bond: This is a type of strong dipole-dipole interaction and is considered a van der Waals' force, but it is stronger than other types.
London dispersion force: This is a weak attraction due to temporary dipoles and is indeed a van der Waals' force.
Permanent dipole - permanent dipole attraction: This interaction occurs between molecules that have permanent dipoles and is also a type of van der Waals' force.
Step 3
Conclusion
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Answer
From the analysis, the only option that does not fit the category of van der Waals' forces is the Covalent bond (A). Therefore, the correct answer is A.
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