CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317191
Assertion : Toluene is \({\text{o , p}}\)-directing. Reason : The hyperconjugation effect of the methyl group increases the electron density at \({\text{o}}\) - and \({\text{p}}\)-positions in the benzene ring.
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:
Toluene, is o,p- directing in electrophilic aromatic substitution reactions. The reason is also true; the hyperconjugation effect of the methyl group in toluene increases electron density at the ortho (o-) and para (p-) positions in the benzene ring, making these positions more reactive. So, the option (1) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317192
Which of the following Carbonium ion is stabilised by Hyperconjugation?
The Carbonium ion that is stabilized by hyperconjugation is option (4). \({\text{C}}{{\text{H}}_{\text{3}}}\mathop - \limits^{} \mathop {\text{C}}\limits^ + {\text{H}} - {\text{C}}{{\text{H}}_{\text{3}}}\). In this ion, the positive charge is on the central carbon atom, and the adjacent carbon atoms can donate electron density through hyperconjugation, which stabilizes the positive charge. Hyperconjugation involves the overlap of sigma \(\left( \sigma \right)\) bond orbitals with an adjacent empty or partially filled p orbital, reducing the electron deficiency at the central carbon atom and making the ion more stable.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317193
Hyperconjugation effect is also known as
1 Baker-Nathan effect
2 no bond resonance
3 Both (1) and (2)
4 None of the above
Explanation:
Hyperconjugation effect is also known as no bond resonance and Baker-Nathan effect.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317194
Hyperconjugation involves overlap of the following orbitals
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317191
Assertion : Toluene is \({\text{o , p}}\)-directing. Reason : The hyperconjugation effect of the methyl group increases the electron density at \({\text{o}}\) - and \({\text{p}}\)-positions in the benzene ring.
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:
Toluene, is o,p- directing in electrophilic aromatic substitution reactions. The reason is also true; the hyperconjugation effect of the methyl group in toluene increases electron density at the ortho (o-) and para (p-) positions in the benzene ring, making these positions more reactive. So, the option (1) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317192
Which of the following Carbonium ion is stabilised by Hyperconjugation?
The Carbonium ion that is stabilized by hyperconjugation is option (4). \({\text{C}}{{\text{H}}_{\text{3}}}\mathop - \limits^{} \mathop {\text{C}}\limits^ + {\text{H}} - {\text{C}}{{\text{H}}_{\text{3}}}\). In this ion, the positive charge is on the central carbon atom, and the adjacent carbon atoms can donate electron density through hyperconjugation, which stabilizes the positive charge. Hyperconjugation involves the overlap of sigma \(\left( \sigma \right)\) bond orbitals with an adjacent empty or partially filled p orbital, reducing the electron deficiency at the central carbon atom and making the ion more stable.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317193
Hyperconjugation effect is also known as
1 Baker-Nathan effect
2 no bond resonance
3 Both (1) and (2)
4 None of the above
Explanation:
Hyperconjugation effect is also known as no bond resonance and Baker-Nathan effect.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317194
Hyperconjugation involves overlap of the following orbitals
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317191
Assertion : Toluene is \({\text{o , p}}\)-directing. Reason : The hyperconjugation effect of the methyl group increases the electron density at \({\text{o}}\) - and \({\text{p}}\)-positions in the benzene ring.
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:
Toluene, is o,p- directing in electrophilic aromatic substitution reactions. The reason is also true; the hyperconjugation effect of the methyl group in toluene increases electron density at the ortho (o-) and para (p-) positions in the benzene ring, making these positions more reactive. So, the option (1) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317192
Which of the following Carbonium ion is stabilised by Hyperconjugation?
The Carbonium ion that is stabilized by hyperconjugation is option (4). \({\text{C}}{{\text{H}}_{\text{3}}}\mathop - \limits^{} \mathop {\text{C}}\limits^ + {\text{H}} - {\text{C}}{{\text{H}}_{\text{3}}}\). In this ion, the positive charge is on the central carbon atom, and the adjacent carbon atoms can donate electron density through hyperconjugation, which stabilizes the positive charge. Hyperconjugation involves the overlap of sigma \(\left( \sigma \right)\) bond orbitals with an adjacent empty or partially filled p orbital, reducing the electron deficiency at the central carbon atom and making the ion more stable.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317193
Hyperconjugation effect is also known as
1 Baker-Nathan effect
2 no bond resonance
3 Both (1) and (2)
4 None of the above
Explanation:
Hyperconjugation effect is also known as no bond resonance and Baker-Nathan effect.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317194
Hyperconjugation involves overlap of the following orbitals
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CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317191
Assertion : Toluene is \({\text{o , p}}\)-directing. Reason : The hyperconjugation effect of the methyl group increases the electron density at \({\text{o}}\) - and \({\text{p}}\)-positions in the benzene ring.
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:
Toluene, is o,p- directing in electrophilic aromatic substitution reactions. The reason is also true; the hyperconjugation effect of the methyl group in toluene increases electron density at the ortho (o-) and para (p-) positions in the benzene ring, making these positions more reactive. So, the option (1) is correct.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317192
Which of the following Carbonium ion is stabilised by Hyperconjugation?
The Carbonium ion that is stabilized by hyperconjugation is option (4). \({\text{C}}{{\text{H}}_{\text{3}}}\mathop - \limits^{} \mathop {\text{C}}\limits^ + {\text{H}} - {\text{C}}{{\text{H}}_{\text{3}}}\). In this ion, the positive charge is on the central carbon atom, and the adjacent carbon atoms can donate electron density through hyperconjugation, which stabilizes the positive charge. Hyperconjugation involves the overlap of sigma \(\left( \sigma \right)\) bond orbitals with an adjacent empty or partially filled p orbital, reducing the electron deficiency at the central carbon atom and making the ion more stable.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317193
Hyperconjugation effect is also known as
1 Baker-Nathan effect
2 no bond resonance
3 Both (1) and (2)
4 None of the above
Explanation:
Hyperconjugation effect is also known as no bond resonance and Baker-Nathan effect.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES
317194
Hyperconjugation involves overlap of the following orbitals
