CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317549
Assertion : Staggered form is more stable than the eclipsed form. Reason : The conformation in which the bond pairs of two central atoms are very far from one another is called staggered form.
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 staggered form is more stable than the eclipsed form because the potential energy of staggered form in which the bond pairs of two carbons are far away from each other is minimum. Also the \(\mathrm{H}\)-atoms are as far apart as possible and non-bonded interaction between them is maximum. In eclipsed form, the \(\mathrm{H}\)-atoms are very close and so the increased overlap between the non-bonded orbitals is repulsive. Therefore, the option (2) is correct
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317550
The boat conformation has how many eclipsing \({\mathrm{\mathrm{H}-\mathrm{H}}}\) interactions?
1 1
2 2
3 3
4 4
Explanation:
Four skew form. 4-Eclipsing \({\mathrm{\mathrm{H}-\mathrm{H}}}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317551
The dihedral angle between the hydrogen atoms of two methyl groups in staggered conformation of ethane is
1 \(120^{\circ}\)
2 \(180^{\circ}\)
3 \(45^{\circ}\)
4 \(60^{\circ}\)
Explanation:
Conceptual Questions
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317552
The most stable conformation of ethylene glycol is
1 Anti
2 Gauche
3 Fully eclipsed
4 Partially eclipsed
Explanation:
The gauche conformer is stabilized by hydrogen bond.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317553
At room temperature the eclipsed and the staggered forms of ethane cannot be isolated because
1 Both the conformers are equally stable
2 They interconvert rapidly
3 There is a large energy barrier of rotation about the \(\sigma\)-bond
4 The energy difference between the conformers is large
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317549
Assertion : Staggered form is more stable than the eclipsed form. Reason : The conformation in which the bond pairs of two central atoms are very far from one another is called staggered form.
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 staggered form is more stable than the eclipsed form because the potential energy of staggered form in which the bond pairs of two carbons are far away from each other is minimum. Also the \(\mathrm{H}\)-atoms are as far apart as possible and non-bonded interaction between them is maximum. In eclipsed form, the \(\mathrm{H}\)-atoms are very close and so the increased overlap between the non-bonded orbitals is repulsive. Therefore, the option (2) is correct
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317550
The boat conformation has how many eclipsing \({\mathrm{\mathrm{H}-\mathrm{H}}}\) interactions?
1 1
2 2
3 3
4 4
Explanation:
Four skew form. 4-Eclipsing \({\mathrm{\mathrm{H}-\mathrm{H}}}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317551
The dihedral angle between the hydrogen atoms of two methyl groups in staggered conformation of ethane is
1 \(120^{\circ}\)
2 \(180^{\circ}\)
3 \(45^{\circ}\)
4 \(60^{\circ}\)
Explanation:
Conceptual Questions
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317552
The most stable conformation of ethylene glycol is
1 Anti
2 Gauche
3 Fully eclipsed
4 Partially eclipsed
Explanation:
The gauche conformer is stabilized by hydrogen bond.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317553
At room temperature the eclipsed and the staggered forms of ethane cannot be isolated because
1 Both the conformers are equally stable
2 They interconvert rapidly
3 There is a large energy barrier of rotation about the \(\sigma\)-bond
4 The energy difference between the conformers is large
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317549
Assertion : Staggered form is more stable than the eclipsed form. Reason : The conformation in which the bond pairs of two central atoms are very far from one another is called staggered form.
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 staggered form is more stable than the eclipsed form because the potential energy of staggered form in which the bond pairs of two carbons are far away from each other is minimum. Also the \(\mathrm{H}\)-atoms are as far apart as possible and non-bonded interaction between them is maximum. In eclipsed form, the \(\mathrm{H}\)-atoms are very close and so the increased overlap between the non-bonded orbitals is repulsive. Therefore, the option (2) is correct
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317550
The boat conformation has how many eclipsing \({\mathrm{\mathrm{H}-\mathrm{H}}}\) interactions?
1 1
2 2
3 3
4 4
Explanation:
Four skew form. 4-Eclipsing \({\mathrm{\mathrm{H}-\mathrm{H}}}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317551
The dihedral angle between the hydrogen atoms of two methyl groups in staggered conformation of ethane is
1 \(120^{\circ}\)
2 \(180^{\circ}\)
3 \(45^{\circ}\)
4 \(60^{\circ}\)
Explanation:
Conceptual Questions
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317552
The most stable conformation of ethylene glycol is
1 Anti
2 Gauche
3 Fully eclipsed
4 Partially eclipsed
Explanation:
The gauche conformer is stabilized by hydrogen bond.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317553
At room temperature the eclipsed and the staggered forms of ethane cannot be isolated because
1 Both the conformers are equally stable
2 They interconvert rapidly
3 There is a large energy barrier of rotation about the \(\sigma\)-bond
4 The energy difference between the conformers is large
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CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317549
Assertion : Staggered form is more stable than the eclipsed form. Reason : The conformation in which the bond pairs of two central atoms are very far from one another is called staggered form.
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 staggered form is more stable than the eclipsed form because the potential energy of staggered form in which the bond pairs of two carbons are far away from each other is minimum. Also the \(\mathrm{H}\)-atoms are as far apart as possible and non-bonded interaction between them is maximum. In eclipsed form, the \(\mathrm{H}\)-atoms are very close and so the increased overlap between the non-bonded orbitals is repulsive. Therefore, the option (2) is correct
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317550
The boat conformation has how many eclipsing \({\mathrm{\mathrm{H}-\mathrm{H}}}\) interactions?
1 1
2 2
3 3
4 4
Explanation:
Four skew form. 4-Eclipsing \({\mathrm{\mathrm{H}-\mathrm{H}}}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317551
The dihedral angle between the hydrogen atoms of two methyl groups in staggered conformation of ethane is
1 \(120^{\circ}\)
2 \(180^{\circ}\)
3 \(45^{\circ}\)
4 \(60^{\circ}\)
Explanation:
Conceptual Questions
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317552
The most stable conformation of ethylene glycol is
1 Anti
2 Gauche
3 Fully eclipsed
4 Partially eclipsed
Explanation:
The gauche conformer is stabilized by hydrogen bond.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317553
At room temperature the eclipsed and the staggered forms of ethane cannot be isolated because
1 Both the conformers are equally stable
2 They interconvert rapidly
3 There is a large energy barrier of rotation about the \(\sigma\)-bond
4 The energy difference between the conformers is large
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317549
Assertion : Staggered form is more stable than the eclipsed form. Reason : The conformation in which the bond pairs of two central atoms are very far from one another is called staggered form.
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 staggered form is more stable than the eclipsed form because the potential energy of staggered form in which the bond pairs of two carbons are far away from each other is minimum. Also the \(\mathrm{H}\)-atoms are as far apart as possible and non-bonded interaction between them is maximum. In eclipsed form, the \(\mathrm{H}\)-atoms are very close and so the increased overlap between the non-bonded orbitals is repulsive. Therefore, the option (2) is correct
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317550
The boat conformation has how many eclipsing \({\mathrm{\mathrm{H}-\mathrm{H}}}\) interactions?
1 1
2 2
3 3
4 4
Explanation:
Four skew form. 4-Eclipsing \({\mathrm{\mathrm{H}-\mathrm{H}}}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317551
The dihedral angle between the hydrogen atoms of two methyl groups in staggered conformation of ethane is
1 \(120^{\circ}\)
2 \(180^{\circ}\)
3 \(45^{\circ}\)
4 \(60^{\circ}\)
Explanation:
Conceptual Questions
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317552
The most stable conformation of ethylene glycol is
1 Anti
2 Gauche
3 Fully eclipsed
4 Partially eclipsed
Explanation:
The gauche conformer is stabilized by hydrogen bond.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317553
At room temperature the eclipsed and the staggered forms of ethane cannot be isolated because
1 Both the conformers are equally stable
2 They interconvert rapidly
3 There is a large energy barrier of rotation about the \(\sigma\)-bond
4 The energy difference between the conformers is large
