Electron Displacement Effects or Polar Effects
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317261 Resonance in most of organic molecules

1 Increases stability
2 Decreases stability
3 Increases reactivity
4 Increases energy
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317262 Given below are two statements: one is labelled as assertion and other is labelled as reason.
Assertion :
There is evidence for existence of N -methylacetamide in two structural froms I and II as shown below:
supporting img
Reason :
Rotation about carbon-nitrogen bond is restricted due to resonance.
In the light of the above statements, choose the correct option from the following:

1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Assertion is false but Reason is true.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317263 Which of the following ions does not show resonance?

1 \(\mathrm{NO}_{3}^{-}\)
2 \(\mathrm{CH}_{3} \mathrm{COO}^{-}\)
3 \(\mathrm{Cl}^{-}\)
4 \(\mathrm{CO}_{3}^{2-}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317264 supporting img
The correct arrangement for decreasing order of electrophilic substitution for above compounds is

1 (IV) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (III)
2 (III) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (I)
3 (II) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (I)
4 (III) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (IV)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317261 Resonance in most of organic molecules

1 Increases stability
2 Decreases stability
3 Increases reactivity
4 Increases energy
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317262 Given below are two statements: one is labelled as assertion and other is labelled as reason.
Assertion :
There is evidence for existence of N -methylacetamide in two structural froms I and II as shown below:
supporting img
Reason :
Rotation about carbon-nitrogen bond is restricted due to resonance.
In the light of the above statements, choose the correct option from the following:

1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Assertion is false but Reason is true.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317263 Which of the following ions does not show resonance?

1 \(\mathrm{NO}_{3}^{-}\)
2 \(\mathrm{CH}_{3} \mathrm{COO}^{-}\)
3 \(\mathrm{Cl}^{-}\)
4 \(\mathrm{CO}_{3}^{2-}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317264 supporting img
The correct arrangement for decreasing order of electrophilic substitution for above compounds is

1 (IV) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (III)
2 (III) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (I)
3 (II) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (I)
4 (III) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (IV)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317261 Resonance in most of organic molecules

1 Increases stability
2 Decreases stability
3 Increases reactivity
4 Increases energy
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317262 Given below are two statements: one is labelled as assertion and other is labelled as reason.
Assertion :
There is evidence for existence of N -methylacetamide in two structural froms I and II as shown below:
supporting img
Reason :
Rotation about carbon-nitrogen bond is restricted due to resonance.
In the light of the above statements, choose the correct option from the following:

1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Assertion is false but Reason is true.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317263 Which of the following ions does not show resonance?

1 \(\mathrm{NO}_{3}^{-}\)
2 \(\mathrm{CH}_{3} \mathrm{COO}^{-}\)
3 \(\mathrm{Cl}^{-}\)
4 \(\mathrm{CO}_{3}^{2-}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317264 supporting img
The correct arrangement for decreasing order of electrophilic substitution for above compounds is

1 (IV) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (III)
2 (III) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (I)
3 (II) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (I)
4 (III) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (IV)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317261 Resonance in most of organic molecules

1 Increases stability
2 Decreases stability
3 Increases reactivity
4 Increases energy
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317262 Given below are two statements: one is labelled as assertion and other is labelled as reason.
Assertion :
There is evidence for existence of N -methylacetamide in two structural froms I and II as shown below:
supporting img
Reason :
Rotation about carbon-nitrogen bond is restricted due to resonance.
In the light of the above statements, choose the correct option from the following:

1 Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
3 Assertion is true but Reason is false.
4 Assertion is false but Reason is true.
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317263 Which of the following ions does not show resonance?

1 \(\mathrm{NO}_{3}^{-}\)
2 \(\mathrm{CH}_{3} \mathrm{COO}^{-}\)
3 \(\mathrm{Cl}^{-}\)
4 \(\mathrm{CO}_{3}^{2-}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317264 supporting img
The correct arrangement for decreasing order of electrophilic substitution for above compounds is

1 (IV) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (III)
2 (III) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (I)
3 (II) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (I)
4 (III) \({\mathrm{>}}\) (I) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (IV)