Among the given compounds, butan-1-ol has highest boiling point. The high boiling points of alcohols are mainly due to the presence of intermolecular hydrogen bonding in them which is lacking in ethers, aldehydes and hydrocarbons. Boiling point order is 1 - Butanol \({\mathrm{>}}\) Butanal \({\mathrm{>}}\) diethylether \({\mathrm{>}}\) butane. So, the correct option is (1).
JEE Main - 2024
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323061
Which of the following compounds has highest boiling point?
1 Propan-1-ol
2 n-butane
3 Chloroethane
4 Propanal
Explanation:
As branching increases, boiling point decreases. While due to the presence of \(\mathrm{H}\) bonding in the compound, boiling point becomes highest in that case. Hence, propan-1-ol shows H-bonding, and it has highest boiling point
MHTCET
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323062
The mixture of ethanol and water cannot be separated by distillation because
1 Their boiling points are very near
2 Alcohol remains dissolved in water
3 They form a constant boiling mixture
4 Alcohol molecules are solvated
Explanation:
Ethanol and water forms azeotropic mixture which boils at constant temperature.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323063
The correct order of boiling point for primary \(\left(1^{0}\right)\), secondary \(\left(2^{0}\right)\), and tertiary \(\left(3^{0}\right)\) alcohol is
1 \(1^{0}>2^{0}>3^{0}\)
2 \(3^{0}>2^{0}>1^{0}\)
3 \(2^{0}>1^{0}>3^{0}\)
4 \(2^{0}>3^{0}>1^{0}\)
Explanation:
Branching increases B.P. decreases
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323064
How many of the following compounds will have higher boiling point than butan-2-ol?
1 4
2 8
3 3
4 2
Explanation:
Factors affecting boiling point of alcohols: i. The boiling points of alcohols are higher than the corresponding alkanes, aldehydes, ketones, ethers, etc., of nearly same molecular masses due to the presence of intermolecular hydrogen bonding. ii. The boiling point of alcohol increases with increase in molecular mass. iii. The boiling point of alcohol decreases with increase in branching. Thus pentan-1-ol (II), butan-1-ol (VI) and hexan-1-ol (VII) will have higher boiling point as compared to butan-2-ol. So, the correct option is (3).
Among the given compounds, butan-1-ol has highest boiling point. The high boiling points of alcohols are mainly due to the presence of intermolecular hydrogen bonding in them which is lacking in ethers, aldehydes and hydrocarbons. Boiling point order is 1 - Butanol \({\mathrm{>}}\) Butanal \({\mathrm{>}}\) diethylether \({\mathrm{>}}\) butane. So, the correct option is (1).
JEE Main - 2024
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323061
Which of the following compounds has highest boiling point?
1 Propan-1-ol
2 n-butane
3 Chloroethane
4 Propanal
Explanation:
As branching increases, boiling point decreases. While due to the presence of \(\mathrm{H}\) bonding in the compound, boiling point becomes highest in that case. Hence, propan-1-ol shows H-bonding, and it has highest boiling point
MHTCET
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323062
The mixture of ethanol and water cannot be separated by distillation because
1 Their boiling points are very near
2 Alcohol remains dissolved in water
3 They form a constant boiling mixture
4 Alcohol molecules are solvated
Explanation:
Ethanol and water forms azeotropic mixture which boils at constant temperature.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323063
The correct order of boiling point for primary \(\left(1^{0}\right)\), secondary \(\left(2^{0}\right)\), and tertiary \(\left(3^{0}\right)\) alcohol is
1 \(1^{0}>2^{0}>3^{0}\)
2 \(3^{0}>2^{0}>1^{0}\)
3 \(2^{0}>1^{0}>3^{0}\)
4 \(2^{0}>3^{0}>1^{0}\)
Explanation:
Branching increases B.P. decreases
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323064
How many of the following compounds will have higher boiling point than butan-2-ol?
1 4
2 8
3 3
4 2
Explanation:
Factors affecting boiling point of alcohols: i. The boiling points of alcohols are higher than the corresponding alkanes, aldehydes, ketones, ethers, etc., of nearly same molecular masses due to the presence of intermolecular hydrogen bonding. ii. The boiling point of alcohol increases with increase in molecular mass. iii. The boiling point of alcohol decreases with increase in branching. Thus pentan-1-ol (II), butan-1-ol (VI) and hexan-1-ol (VII) will have higher boiling point as compared to butan-2-ol. So, the correct option is (3).
Among the given compounds, butan-1-ol has highest boiling point. The high boiling points of alcohols are mainly due to the presence of intermolecular hydrogen bonding in them which is lacking in ethers, aldehydes and hydrocarbons. Boiling point order is 1 - Butanol \({\mathrm{>}}\) Butanal \({\mathrm{>}}\) diethylether \({\mathrm{>}}\) butane. So, the correct option is (1).
JEE Main - 2024
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323061
Which of the following compounds has highest boiling point?
1 Propan-1-ol
2 n-butane
3 Chloroethane
4 Propanal
Explanation:
As branching increases, boiling point decreases. While due to the presence of \(\mathrm{H}\) bonding in the compound, boiling point becomes highest in that case. Hence, propan-1-ol shows H-bonding, and it has highest boiling point
MHTCET
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323062
The mixture of ethanol and water cannot be separated by distillation because
1 Their boiling points are very near
2 Alcohol remains dissolved in water
3 They form a constant boiling mixture
4 Alcohol molecules are solvated
Explanation:
Ethanol and water forms azeotropic mixture which boils at constant temperature.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323063
The correct order of boiling point for primary \(\left(1^{0}\right)\), secondary \(\left(2^{0}\right)\), and tertiary \(\left(3^{0}\right)\) alcohol is
1 \(1^{0}>2^{0}>3^{0}\)
2 \(3^{0}>2^{0}>1^{0}\)
3 \(2^{0}>1^{0}>3^{0}\)
4 \(2^{0}>3^{0}>1^{0}\)
Explanation:
Branching increases B.P. decreases
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323064
How many of the following compounds will have higher boiling point than butan-2-ol?
1 4
2 8
3 3
4 2
Explanation:
Factors affecting boiling point of alcohols: i. The boiling points of alcohols are higher than the corresponding alkanes, aldehydes, ketones, ethers, etc., of nearly same molecular masses due to the presence of intermolecular hydrogen bonding. ii. The boiling point of alcohol increases with increase in molecular mass. iii. The boiling point of alcohol decreases with increase in branching. Thus pentan-1-ol (II), butan-1-ol (VI) and hexan-1-ol (VII) will have higher boiling point as compared to butan-2-ol. So, the correct option is (3).
Among the given compounds, butan-1-ol has highest boiling point. The high boiling points of alcohols are mainly due to the presence of intermolecular hydrogen bonding in them which is lacking in ethers, aldehydes and hydrocarbons. Boiling point order is 1 - Butanol \({\mathrm{>}}\) Butanal \({\mathrm{>}}\) diethylether \({\mathrm{>}}\) butane. So, the correct option is (1).
JEE Main - 2024
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323061
Which of the following compounds has highest boiling point?
1 Propan-1-ol
2 n-butane
3 Chloroethane
4 Propanal
Explanation:
As branching increases, boiling point decreases. While due to the presence of \(\mathrm{H}\) bonding in the compound, boiling point becomes highest in that case. Hence, propan-1-ol shows H-bonding, and it has highest boiling point
MHTCET
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323062
The mixture of ethanol and water cannot be separated by distillation because
1 Their boiling points are very near
2 Alcohol remains dissolved in water
3 They form a constant boiling mixture
4 Alcohol molecules are solvated
Explanation:
Ethanol and water forms azeotropic mixture which boils at constant temperature.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323063
The correct order of boiling point for primary \(\left(1^{0}\right)\), secondary \(\left(2^{0}\right)\), and tertiary \(\left(3^{0}\right)\) alcohol is
1 \(1^{0}>2^{0}>3^{0}\)
2 \(3^{0}>2^{0}>1^{0}\)
3 \(2^{0}>1^{0}>3^{0}\)
4 \(2^{0}>3^{0}>1^{0}\)
Explanation:
Branching increases B.P. decreases
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323064
How many of the following compounds will have higher boiling point than butan-2-ol?
1 4
2 8
3 3
4 2
Explanation:
Factors affecting boiling point of alcohols: i. The boiling points of alcohols are higher than the corresponding alkanes, aldehydes, ketones, ethers, etc., of nearly same molecular masses due to the presence of intermolecular hydrogen bonding. ii. The boiling point of alcohol increases with increase in molecular mass. iii. The boiling point of alcohol decreases with increase in branching. Thus pentan-1-ol (II), butan-1-ol (VI) and hexan-1-ol (VII) will have higher boiling point as compared to butan-2-ol. So, the correct option is (3).
Among the given compounds, butan-1-ol has highest boiling point. The high boiling points of alcohols are mainly due to the presence of intermolecular hydrogen bonding in them which is lacking in ethers, aldehydes and hydrocarbons. Boiling point order is 1 - Butanol \({\mathrm{>}}\) Butanal \({\mathrm{>}}\) diethylether \({\mathrm{>}}\) butane. So, the correct option is (1).
JEE Main - 2024
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323061
Which of the following compounds has highest boiling point?
1 Propan-1-ol
2 n-butane
3 Chloroethane
4 Propanal
Explanation:
As branching increases, boiling point decreases. While due to the presence of \(\mathrm{H}\) bonding in the compound, boiling point becomes highest in that case. Hence, propan-1-ol shows H-bonding, and it has highest boiling point
MHTCET
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323062
The mixture of ethanol and water cannot be separated by distillation because
1 Their boiling points are very near
2 Alcohol remains dissolved in water
3 They form a constant boiling mixture
4 Alcohol molecules are solvated
Explanation:
Ethanol and water forms azeotropic mixture which boils at constant temperature.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323063
The correct order of boiling point for primary \(\left(1^{0}\right)\), secondary \(\left(2^{0}\right)\), and tertiary \(\left(3^{0}\right)\) alcohol is
1 \(1^{0}>2^{0}>3^{0}\)
2 \(3^{0}>2^{0}>1^{0}\)
3 \(2^{0}>1^{0}>3^{0}\)
4 \(2^{0}>3^{0}>1^{0}\)
Explanation:
Branching increases B.P. decreases
CHXII11:ALCOHOLS, PHENOLS AND ETHERS
323064
How many of the following compounds will have higher boiling point than butan-2-ol?
1 4
2 8
3 3
4 2
Explanation:
Factors affecting boiling point of alcohols: i. The boiling points of alcohols are higher than the corresponding alkanes, aldehydes, ketones, ethers, etc., of nearly same molecular masses due to the presence of intermolecular hydrogen bonding. ii. The boiling point of alcohol increases with increase in molecular mass. iii. The boiling point of alcohol decreases with increase in branching. Thus pentan-1-ol (II), butan-1-ol (VI) and hexan-1-ol (VII) will have higher boiling point as compared to butan-2-ol. So, the correct option is (3).
