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

317273 The order of relative stability of the contributing structures is
supporting img
Choose the correct answer from the options given below :

1 \(\mathrm{I}=\mathrm{II}=\mathrm{III}\)
2 \({\text{II > I > III}}\)
3 \({\text{I > II > III}}\)
4 \({\text{III > II > I}}\)
JEE - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317274 The functional group that shows negative resonance effect is

1 \(-\)OH
2 \(-\) OR
3 \(-\)COOH
4 \({\mathrm{-\mathrm{NH}_{2}}}\)
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317275 Which of the following species does not exhibit a resonance effect?

1 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{OH}\)
2 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{Cl}\)
3 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}\)
4 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{3}\)
KCET - 2008
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317276 The difference in energy between the actual structure and the lowest energy resonance structure for the given compound is

1 ionization energy
2 electromeric energy
3 hyperconjugation energy
4 resonance energy.
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317277 The \(\mathrm{C}-\mathrm{C}\) bond length of the following molecules is in the order

1 \(\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{4}>\mathrm{C}_{6} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{2}\)
2 \(\mathrm{C}_{2} \mathrm{H}_{2} < \mathrm{C}_{2} \mathrm{H}_{4} < \mathrm{C}_{6} \mathrm{H}_{6} < \mathrm{C}_{2} \mathrm{H}_{6}\)
3 \(\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{2}>\mathrm{C}_{6} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{4}\)
4 \(\mathrm{C}_{2} \mathrm{H}_{4}>\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{6} \mathrm{H}_{2}>\mathrm{C}_{6} \mathrm{H}_{6}\)
NEET DIGITAL LIBRARY
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317273 The order of relative stability of the contributing structures is
supporting img
Choose the correct answer from the options given below :

1 \(\mathrm{I}=\mathrm{II}=\mathrm{III}\)
2 \({\text{II > I > III}}\)
3 \({\text{I > II > III}}\)
4 \({\text{III > II > I}}\)
JEE - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317274 The functional group that shows negative resonance effect is

1 \(-\)OH
2 \(-\) OR
3 \(-\)COOH
4 \({\mathrm{-\mathrm{NH}_{2}}}\)
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317275 Which of the following species does not exhibit a resonance effect?

1 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{OH}\)
2 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{Cl}\)
3 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}\)
4 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{3}\)
KCET - 2008
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317276 The difference in energy between the actual structure and the lowest energy resonance structure for the given compound is

1 ionization energy
2 electromeric energy
3 hyperconjugation energy
4 resonance energy.
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317277 The \(\mathrm{C}-\mathrm{C}\) bond length of the following molecules is in the order

1 \(\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{4}>\mathrm{C}_{6} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{2}\)
2 \(\mathrm{C}_{2} \mathrm{H}_{2} < \mathrm{C}_{2} \mathrm{H}_{4} < \mathrm{C}_{6} \mathrm{H}_{6} < \mathrm{C}_{2} \mathrm{H}_{6}\)
3 \(\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{2}>\mathrm{C}_{6} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{4}\)
4 \(\mathrm{C}_{2} \mathrm{H}_{4}>\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{6} \mathrm{H}_{2}>\mathrm{C}_{6} \mathrm{H}_{6}\)
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CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317273 The order of relative stability of the contributing structures is
supporting img
Choose the correct answer from the options given below :

1 \(\mathrm{I}=\mathrm{II}=\mathrm{III}\)
2 \({\text{II > I > III}}\)
3 \({\text{I > II > III}}\)
4 \({\text{III > II > I}}\)
JEE - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317274 The functional group that shows negative resonance effect is

1 \(-\)OH
2 \(-\) OR
3 \(-\)COOH
4 \({\mathrm{-\mathrm{NH}_{2}}}\)
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317275 Which of the following species does not exhibit a resonance effect?

1 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{OH}\)
2 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{Cl}\)
3 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}\)
4 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{3}\)
KCET - 2008
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317276 The difference in energy between the actual structure and the lowest energy resonance structure for the given compound is

1 ionization energy
2 electromeric energy
3 hyperconjugation energy
4 resonance energy.
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317277 The \(\mathrm{C}-\mathrm{C}\) bond length of the following molecules is in the order

1 \(\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{4}>\mathrm{C}_{6} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{2}\)
2 \(\mathrm{C}_{2} \mathrm{H}_{2} < \mathrm{C}_{2} \mathrm{H}_{4} < \mathrm{C}_{6} \mathrm{H}_{6} < \mathrm{C}_{2} \mathrm{H}_{6}\)
3 \(\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{2}>\mathrm{C}_{6} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{4}\)
4 \(\mathrm{C}_{2} \mathrm{H}_{4}>\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{6} \mathrm{H}_{2}>\mathrm{C}_{6} \mathrm{H}_{6}\)
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CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317273 The order of relative stability of the contributing structures is
supporting img
Choose the correct answer from the options given below :

1 \(\mathrm{I}=\mathrm{II}=\mathrm{III}\)
2 \({\text{II > I > III}}\)
3 \({\text{I > II > III}}\)
4 \({\text{III > II > I}}\)
JEE - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317274 The functional group that shows negative resonance effect is

1 \(-\)OH
2 \(-\) OR
3 \(-\)COOH
4 \({\mathrm{-\mathrm{NH}_{2}}}\)
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317275 Which of the following species does not exhibit a resonance effect?

1 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{OH}\)
2 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{Cl}\)
3 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}\)
4 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{3}\)
KCET - 2008
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317276 The difference in energy between the actual structure and the lowest energy resonance structure for the given compound is

1 ionization energy
2 electromeric energy
3 hyperconjugation energy
4 resonance energy.
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317277 The \(\mathrm{C}-\mathrm{C}\) bond length of the following molecules is in the order

1 \(\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{4}>\mathrm{C}_{6} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{2}\)
2 \(\mathrm{C}_{2} \mathrm{H}_{2} < \mathrm{C}_{2} \mathrm{H}_{4} < \mathrm{C}_{6} \mathrm{H}_{6} < \mathrm{C}_{2} \mathrm{H}_{6}\)
3 \(\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{2}>\mathrm{C}_{6} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{4}\)
4 \(\mathrm{C}_{2} \mathrm{H}_{4}>\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{6} \mathrm{H}_{2}>\mathrm{C}_{6} \mathrm{H}_{6}\)
NEET DIGITAL LIBRARY
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317273 The order of relative stability of the contributing structures is
supporting img
Choose the correct answer from the options given below :

1 \(\mathrm{I}=\mathrm{II}=\mathrm{III}\)
2 \({\text{II > I > III}}\)
3 \({\text{I > II > III}}\)
4 \({\text{III > II > I}}\)
JEE - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317274 The functional group that shows negative resonance effect is

1 \(-\)OH
2 \(-\) OR
3 \(-\)COOH
4 \({\mathrm{-\mathrm{NH}_{2}}}\)
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317275 Which of the following species does not exhibit a resonance effect?

1 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{OH}\)
2 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{Cl}\)
3 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2}\)
4 \(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{3}\)
KCET - 2008
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317276 The difference in energy between the actual structure and the lowest energy resonance structure for the given compound is

1 ionization energy
2 electromeric energy
3 hyperconjugation energy
4 resonance energy.
JEE Main - 2024
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317277 The \(\mathrm{C}-\mathrm{C}\) bond length of the following molecules is in the order

1 \(\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{4}>\mathrm{C}_{6} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{2}\)
2 \(\mathrm{C}_{2} \mathrm{H}_{2} < \mathrm{C}_{2} \mathrm{H}_{4} < \mathrm{C}_{6} \mathrm{H}_{6} < \mathrm{C}_{2} \mathrm{H}_{6}\)
3 \(\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{2}>\mathrm{C}_{6} \mathrm{H}_{6}>\mathrm{C}_{2} \mathrm{H}_{4}\)
4 \(\mathrm{C}_{2} \mathrm{H}_{4}>\mathrm{C}_{2} \mathrm{H}_{6}>\mathrm{C}_{6} \mathrm{H}_{2}>\mathrm{C}_{6} \mathrm{H}_{6}\)