324084
Assertion : Ammonia is more basic than water. Reason : Nitrogen is less electronegative than oxygen.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The higher basicity of ammonia compared to water stems from the lower electronegativity of nitrogen, promoting a greater tendency to donate electrons and form ammonium ions. Thus, option (1) is correct.
CHXII13:AMINES
324085
Amines are basic in character because they have
1 a lone pair of electrons on the nitrogen atom
2 a hydroxyl group in the molecule
3 replaceable hydrogen atom
4 tetrahedral structure
Explanation:
According to Lewis, species having a tendency of donating an electron pair are called bases. In amines, a lone pair of electrons is present over nitrogen. Since, it is available for donation, thus, it provides basic character to the amines.
CHXII13:AMINES
324086
Arrange the following in the correct order of their basic character I. \(\mathrm{NH}_{3}\) II. \(\mathrm{CH}_{3} \mathrm{NH}_{2}\) III. \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}\)
324087
Statement A : Order of basicity of amines in gaseous phase is \(\mathrm{NH}_{3}>\) primary amine \(>\) secondary amine \(>\) tertiary amine. Statement B : In gaseous phase the basic nature of aliphatic amine increases with the increase in number of alkyl groups.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Order of basicity of amines in gaseous phase follows the order: Tertiary amine \(>\) secondary amine \(>\) primary amine \(>\mathrm{NH}_{3}\). The basic nature of aliphatic amines increases with increase in the number of alkyl groups (in gaseous phase).
CHXII13:AMINES
324088
The correct order of increasing basic nature for the bases \(\mathrm{NH}_{3}, \mathrm{CH}_{3} \mathrm{NH}_{2}\) and \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}\) in aqueous solutions is
Due to \(+\mathrm{I}\) effect of methyl group \(2^{0}\) amine are more basic than \(1^{0}\) amine. Hence, order of basicity of methyl amine in aqeuous solution is : \(\mathrm{NH}_{3} < \mathrm{CH}_{3} \mathrm{NH}_{2} < \left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}\)
324084
Assertion : Ammonia is more basic than water. Reason : Nitrogen is less electronegative than oxygen.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The higher basicity of ammonia compared to water stems from the lower electronegativity of nitrogen, promoting a greater tendency to donate electrons and form ammonium ions. Thus, option (1) is correct.
CHXII13:AMINES
324085
Amines are basic in character because they have
1 a lone pair of electrons on the nitrogen atom
2 a hydroxyl group in the molecule
3 replaceable hydrogen atom
4 tetrahedral structure
Explanation:
According to Lewis, species having a tendency of donating an electron pair are called bases. In amines, a lone pair of electrons is present over nitrogen. Since, it is available for donation, thus, it provides basic character to the amines.
CHXII13:AMINES
324086
Arrange the following in the correct order of their basic character I. \(\mathrm{NH}_{3}\) II. \(\mathrm{CH}_{3} \mathrm{NH}_{2}\) III. \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}\)
324087
Statement A : Order of basicity of amines in gaseous phase is \(\mathrm{NH}_{3}>\) primary amine \(>\) secondary amine \(>\) tertiary amine. Statement B : In gaseous phase the basic nature of aliphatic amine increases with the increase in number of alkyl groups.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Order of basicity of amines in gaseous phase follows the order: Tertiary amine \(>\) secondary amine \(>\) primary amine \(>\mathrm{NH}_{3}\). The basic nature of aliphatic amines increases with increase in the number of alkyl groups (in gaseous phase).
CHXII13:AMINES
324088
The correct order of increasing basic nature for the bases \(\mathrm{NH}_{3}, \mathrm{CH}_{3} \mathrm{NH}_{2}\) and \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}\) in aqueous solutions is
Due to \(+\mathrm{I}\) effect of methyl group \(2^{0}\) amine are more basic than \(1^{0}\) amine. Hence, order of basicity of methyl amine in aqeuous solution is : \(\mathrm{NH}_{3} < \mathrm{CH}_{3} \mathrm{NH}_{2} < \left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}\)
324084
Assertion : Ammonia is more basic than water. Reason : Nitrogen is less electronegative than oxygen.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The higher basicity of ammonia compared to water stems from the lower electronegativity of nitrogen, promoting a greater tendency to donate electrons and form ammonium ions. Thus, option (1) is correct.
CHXII13:AMINES
324085
Amines are basic in character because they have
1 a lone pair of electrons on the nitrogen atom
2 a hydroxyl group in the molecule
3 replaceable hydrogen atom
4 tetrahedral structure
Explanation:
According to Lewis, species having a tendency of donating an electron pair are called bases. In amines, a lone pair of electrons is present over nitrogen. Since, it is available for donation, thus, it provides basic character to the amines.
CHXII13:AMINES
324086
Arrange the following in the correct order of their basic character I. \(\mathrm{NH}_{3}\) II. \(\mathrm{CH}_{3} \mathrm{NH}_{2}\) III. \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}\)
324087
Statement A : Order of basicity of amines in gaseous phase is \(\mathrm{NH}_{3}>\) primary amine \(>\) secondary amine \(>\) tertiary amine. Statement B : In gaseous phase the basic nature of aliphatic amine increases with the increase in number of alkyl groups.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Order of basicity of amines in gaseous phase follows the order: Tertiary amine \(>\) secondary amine \(>\) primary amine \(>\mathrm{NH}_{3}\). The basic nature of aliphatic amines increases with increase in the number of alkyl groups (in gaseous phase).
CHXII13:AMINES
324088
The correct order of increasing basic nature for the bases \(\mathrm{NH}_{3}, \mathrm{CH}_{3} \mathrm{NH}_{2}\) and \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}\) in aqueous solutions is
Due to \(+\mathrm{I}\) effect of methyl group \(2^{0}\) amine are more basic than \(1^{0}\) amine. Hence, order of basicity of methyl amine in aqeuous solution is : \(\mathrm{NH}_{3} < \mathrm{CH}_{3} \mathrm{NH}_{2} < \left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}\)
324084
Assertion : Ammonia is more basic than water. Reason : Nitrogen is less electronegative than oxygen.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The higher basicity of ammonia compared to water stems from the lower electronegativity of nitrogen, promoting a greater tendency to donate electrons and form ammonium ions. Thus, option (1) is correct.
CHXII13:AMINES
324085
Amines are basic in character because they have
1 a lone pair of electrons on the nitrogen atom
2 a hydroxyl group in the molecule
3 replaceable hydrogen atom
4 tetrahedral structure
Explanation:
According to Lewis, species having a tendency of donating an electron pair are called bases. In amines, a lone pair of electrons is present over nitrogen. Since, it is available for donation, thus, it provides basic character to the amines.
CHXII13:AMINES
324086
Arrange the following in the correct order of their basic character I. \(\mathrm{NH}_{3}\) II. \(\mathrm{CH}_{3} \mathrm{NH}_{2}\) III. \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}\)
324087
Statement A : Order of basicity of amines in gaseous phase is \(\mathrm{NH}_{3}>\) primary amine \(>\) secondary amine \(>\) tertiary amine. Statement B : In gaseous phase the basic nature of aliphatic amine increases with the increase in number of alkyl groups.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Order of basicity of amines in gaseous phase follows the order: Tertiary amine \(>\) secondary amine \(>\) primary amine \(>\mathrm{NH}_{3}\). The basic nature of aliphatic amines increases with increase in the number of alkyl groups (in gaseous phase).
CHXII13:AMINES
324088
The correct order of increasing basic nature for the bases \(\mathrm{NH}_{3}, \mathrm{CH}_{3} \mathrm{NH}_{2}\) and \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}\) in aqueous solutions is
Due to \(+\mathrm{I}\) effect of methyl group \(2^{0}\) amine are more basic than \(1^{0}\) amine. Hence, order of basicity of methyl amine in aqeuous solution is : \(\mathrm{NH}_{3} < \mathrm{CH}_{3} \mathrm{NH}_{2} < \left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}\)
324084
Assertion : Ammonia is more basic than water. Reason : Nitrogen is less electronegative than oxygen.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
Explanation:
The higher basicity of ammonia compared to water stems from the lower electronegativity of nitrogen, promoting a greater tendency to donate electrons and form ammonium ions. Thus, option (1) is correct.
CHXII13:AMINES
324085
Amines are basic in character because they have
1 a lone pair of electrons on the nitrogen atom
2 a hydroxyl group in the molecule
3 replaceable hydrogen atom
4 tetrahedral structure
Explanation:
According to Lewis, species having a tendency of donating an electron pair are called bases. In amines, a lone pair of electrons is present over nitrogen. Since, it is available for donation, thus, it provides basic character to the amines.
CHXII13:AMINES
324086
Arrange the following in the correct order of their basic character I. \(\mathrm{NH}_{3}\) II. \(\mathrm{CH}_{3} \mathrm{NH}_{2}\) III. \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}\)
324087
Statement A : Order of basicity of amines in gaseous phase is \(\mathrm{NH}_{3}>\) primary amine \(>\) secondary amine \(>\) tertiary amine. Statement B : In gaseous phase the basic nature of aliphatic amine increases with the increase in number of alkyl groups.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Order of basicity of amines in gaseous phase follows the order: Tertiary amine \(>\) secondary amine \(>\) primary amine \(>\mathrm{NH}_{3}\). The basic nature of aliphatic amines increases with increase in the number of alkyl groups (in gaseous phase).
CHXII13:AMINES
324088
The correct order of increasing basic nature for the bases \(\mathrm{NH}_{3}, \mathrm{CH}_{3} \mathrm{NH}_{2}\) and \(\left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}\) in aqueous solutions is
Due to \(+\mathrm{I}\) effect of methyl group \(2^{0}\) amine are more basic than \(1^{0}\) amine. Hence, order of basicity of methyl amine in aqeuous solution is : \(\mathrm{NH}_{3} < \mathrm{CH}_{3} \mathrm{NH}_{2} < \left(\mathrm{CH}_{3}\right)_{2} \mathrm{NH}\)
