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Arrange the following sets of compounds in order of their increasing boiling points : Pentan – 1 – ol, butan – 1 – ol, butan – 2 – ol, ethanol, propan – 1 – ol, methanol
- a)Propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanol
- b)Butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanol, propan – 1 – ol,
- c)Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol.
- d)Pentan – 1 – ol Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol,
Correct answer is option 'C'. Can you explain this answer?
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Arrange the following sets of compounds in order of their increasing b...
Boiling point is α Vanderwall forces α Molecular weight.
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Arrange the following sets of compounds in order of their increasing b...
To determine the order of boiling points of the given compounds, we need to consider their molecular structures and intermolecular forces.
Intermolecular forces are the attractive forces between molecules. The strength of these forces determines the boiling points of substances. The main types of intermolecular forces are:
1. Van der Waals forces: These forces exist between all molecules and arise from temporary fluctuations in electron distribution. They are generally weaker than other intermolecular forces.
2. Hydrogen bonding: This is a special type of dipole-dipole interaction that occurs when a hydrogen atom is bonded to a highly electronegative atom (such as oxygen, nitrogen, or fluorine) and is attracted to another electronegative atom in a different molecule.
3. Dipole-dipole interactions: These forces occur between polar molecules and are a result of the attraction between the positive end of one molecule and the negative end of another.
4. London dispersion forces: These forces are the weakest intermolecular forces and occur between all molecules. They arise from temporary fluctuations in electron distribution, resulting in temporary dipoles.
Now, let's analyze the given sets of compounds:
a) Propan 1 ol, butan 2 ol, butan 1 ol, pentan 1 ol, methanol, ethanol
- Propan-1-ol has a longer carbon chain than the other alcohols, which increases its surface area and allows for more extensive London dispersion forces. Therefore, it has the highest boiling point among the alcohols in this set.
- Methanol and ethanol can form hydrogen bonds due to the presence of the hydroxyl group (-OH). Ethanol has a longer carbon chain than methanol, so it has slightly stronger intermolecular forces and a higher boiling point.
- Among the alcohols, butan-1-ol has a longer carbon chain than butan-2-ol, so it has stronger intermolecular forces and a higher boiling point.
- Finally, pentan-1-ol has the longest carbon chain among all the alcohols, resulting in the strongest intermolecular forces and the highest boiling point.
Therefore, the correct order of increasing boiling points for this set is:
methanol < ethanol="" />< butan-2-ol="" />< butan-1-ol="" />< propan-1-ol="" />< />
b) Butan 2 ol, butan 1 ol, pentan 1 ol, methanol, ethanol, propan 1 ol
- The analysis for this set is the same as in the previous set. The only difference is the order of the alcohols.
- Therefore, the correct order of increasing boiling points for this set is:
methanol < ethanol="" />< propan-1-ol="" />< butan-2-ol="" />< butan-1-ol="" />< />
c) Methanol, ethanol, propan 1 ol, butan 2 ol, butan 1 ol, pentan 1 ol
- This set is already in the correct order of increasing boiling points. The analysis is the same as in the previous sets.
- Therefore, the correct order of increasing boiling points for this set is:
methanol < ethanol="" />< propan-1-ol="" />< butan-2-ol="" />< butan-1-ol="" />< />
d) Pent
Intermolecular forces are the attractive forces between molecules. The strength of these forces determines the boiling points of substances. The main types of intermolecular forces are:
1. Van der Waals forces: These forces exist between all molecules and arise from temporary fluctuations in electron distribution. They are generally weaker than other intermolecular forces.
2. Hydrogen bonding: This is a special type of dipole-dipole interaction that occurs when a hydrogen atom is bonded to a highly electronegative atom (such as oxygen, nitrogen, or fluorine) and is attracted to another electronegative atom in a different molecule.
3. Dipole-dipole interactions: These forces occur between polar molecules and are a result of the attraction between the positive end of one molecule and the negative end of another.
4. London dispersion forces: These forces are the weakest intermolecular forces and occur between all molecules. They arise from temporary fluctuations in electron distribution, resulting in temporary dipoles.
Now, let's analyze the given sets of compounds:
a) Propan 1 ol, butan 2 ol, butan 1 ol, pentan 1 ol, methanol, ethanol
- Propan-1-ol has a longer carbon chain than the other alcohols, which increases its surface area and allows for more extensive London dispersion forces. Therefore, it has the highest boiling point among the alcohols in this set.
- Methanol and ethanol can form hydrogen bonds due to the presence of the hydroxyl group (-OH). Ethanol has a longer carbon chain than methanol, so it has slightly stronger intermolecular forces and a higher boiling point.
- Among the alcohols, butan-1-ol has a longer carbon chain than butan-2-ol, so it has stronger intermolecular forces and a higher boiling point.
- Finally, pentan-1-ol has the longest carbon chain among all the alcohols, resulting in the strongest intermolecular forces and the highest boiling point.
Therefore, the correct order of increasing boiling points for this set is:
methanol < ethanol="" />< butan-2-ol="" />< butan-1-ol="" />< propan-1-ol="" />< />
b) Butan 2 ol, butan 1 ol, pentan 1 ol, methanol, ethanol, propan 1 ol
- The analysis for this set is the same as in the previous set. The only difference is the order of the alcohols.
- Therefore, the correct order of increasing boiling points for this set is:
methanol < ethanol="" />< propan-1-ol="" />< butan-2-ol="" />< butan-1-ol="" />< />
c) Methanol, ethanol, propan 1 ol, butan 2 ol, butan 1 ol, pentan 1 ol
- This set is already in the correct order of increasing boiling points. The analysis is the same as in the previous sets.
- Therefore, the correct order of increasing boiling points for this set is:
methanol < ethanol="" />< propan-1-ol="" />< butan-2-ol="" />< butan-1-ol="" />< />
d) Pent
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Arrange the following sets of compounds in order of their increasing boiling points : Pentan – 1 – ol, butan – 1 – ol, butan – 2 – ol, ethanol, propan – 1 – ol, methanola)Propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanolb)Butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanol, propan – 1 – ol,c)Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol.d)Pentan – 1 – ol Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol,Correct answer is option 'C'. Can you explain this answer?
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Arrange the following sets of compounds in order of their increasing boiling points : Pentan – 1 – ol, butan – 1 – ol, butan – 2 – ol, ethanol, propan – 1 – ol, methanola)Propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanolb)Butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanol, propan – 1 – ol,c)Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol.d)Pentan – 1 – ol Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol,Correct answer is option 'C'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Arrange the following sets of compounds in order of their increasing boiling points : Pentan – 1 – ol, butan – 1 – ol, butan – 2 – ol, ethanol, propan – 1 – ol, methanola)Propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanolb)Butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanol, propan – 1 – ol,c)Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol.d)Pentan – 1 – ol Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol,Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Arrange the following sets of compounds in order of their increasing boiling points : Pentan – 1 – ol, butan – 1 – ol, butan – 2 – ol, ethanol, propan – 1 – ol, methanola)Propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanolb)Butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanol, propan – 1 – ol,c)Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol.d)Pentan – 1 – ol Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol,Correct answer is option 'C'. Can you explain this answer?.
Arrange the following sets of compounds in order of their increasing boiling points : Pentan – 1 – ol, butan – 1 – ol, butan – 2 – ol, ethanol, propan – 1 – ol, methanola)Propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanolb)Butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanol, propan – 1 – ol,c)Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol.d)Pentan – 1 – ol Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol,Correct answer is option 'C'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Arrange the following sets of compounds in order of their increasing boiling points : Pentan – 1 – ol, butan – 1 – ol, butan – 2 – ol, ethanol, propan – 1 – ol, methanola)Propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanolb)Butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanol, propan – 1 – ol,c)Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol.d)Pentan – 1 – ol Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol,Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Arrange the following sets of compounds in order of their increasing boiling points : Pentan – 1 – ol, butan – 1 – ol, butan – 2 – ol, ethanol, propan – 1 – ol, methanola)Propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanolb)Butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol, methanol, ethanol, propan – 1 – ol,c)Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol, pentan – 1 – ol.d)Pentan – 1 – ol Methanol, ethanol, propan – 1 – ol, butan – 2 – ol, butan – 1 – ol,Correct answer is option 'C'. Can you explain this answer?.
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