1.

    Which of the following group show −m - m and −I - I. effect

    A

    −NO2 - N{O_2}

    B

    −NH2 - N{H_2}

    C

    −OH - OH

    D

    −Cl - Cl

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Organic Chemistry: Some basic principles and techniques
    🎯Topic:Electron Displacements
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Inductive effect, Mesomeric effect, Electron withdrawing groups

    Related Questions

    1.

    Mesomeric effect involves delocalisation of

    A

    Pi-electrons

    B

    Sigma electrons

    C

    Protons

    D

    None of these

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Organic Chemistry: Some basic principles and techniques
    🎯Topic:Electron Displacements
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Mesomeric effect, Delocalisation, Pi-electrons, Sigma electrons

    2.

    Chloroacetic acid is a stronger acid than acetic acid. This can be explained using

    A

    −M - M effect

    B

    −I - I effect

    C

    +M + M effect

    D

    +I + I effect

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Organic Chemistry: Some basic principles and techniques
    🎯Topic:Electron Displacements
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :inductive effect, acid strength, substituent effects

    3.

    Which of the following group show +M + M. effect

    A

    −CN - CN

    B

    −ONO - ONO

    C

    −CCl3 - CC{l_3}

    D

    −CHO - CHO

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Organic Chemistry: Some basic principles and techniques
    🎯Topic:Electron Displacements
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :mesomeric effect, +M effect, electron donating groups

    4.

    Which effect involves the complete transfer of a shared pair of pi electrons?

    A

    Inductive effect

    B

    Resonance effect

    C

    Electromeric effect

    D

    Hyperconjugation

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Organic Chemistry: Some basic principles and techniques
    🎯Topic:Electron Displacements
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Electron Displacement Effects, Electromeric Effect

    5.

    A tertiary butyl carbocation is more stable than a secondary butyl carbocation because of?

    A

    Resonance

    B

    +I effect and hyperconjugation

    C

    Steric hindrance

    D

    -I effect

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Organic Chemistry: Some basic principles and techniques
    🎯Topic:Electron Displacements
    PYQ YEAR: 2020
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Organic Chemistry, Carbocations, Stability

    6.

    Which of the following is the strongest base?

    A

    C2H5−{{\rm{C}}_2}{\rm{H}}_5^ -

    B

    C2H5COO−{{\rm{C}}_2}{{\rm{H}}_5}{\rm{CO}}{{\rm{O}}^ - }

    C

    C2H5O−{{\rm{C}}_2}{{\rm{H}}_5}{{\rm{O}}^ - }

    D

    H2PO4{{\rm{H}}_2}{\rm{P}}{{\rm{O}}_4}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Organic Chemistry: Some basic principles and techniques
    🎯Topic:Electron Displacements
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Basicity, Conjugate Base, Inductive Effects, Electronegativity

    7.

    Inductive effect involves

    A

    Delocalisation of σ\sigma electrons

    B

    partial displacement of σ\sigma electrons

    C

    Delocalisation of π\pi electrons

    D

    Displacement of lone pair

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Organic Chemistry: Some basic principles and techniques
    🎯Topic:Electron Displacements
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Inductive effect, sigma electrons, pi electrons, lone pairs

    8.

    Mesomeric effect involves delocalisation of

    A

    Pi-electrons

    B

    Sigma electrons

    C

    Protons

    D

    None of these

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Organic Chemistry: Some basic principles and techniques
    🎯Topic:Electron Displacements
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Mesomeric effect, Pi-electrons, Sigma electrons

    9.

    Which is most basic among the following

    A

    CH3CH2NH2C{H_3}C{H_2}N{H_2}

    B

    Cl−CH2CH2NH2Cl - C{H_2}C{H_2}N{H_2}

    C

    O2N−CH2CH2NH2{O_2}N - C{H_2}C{H_2}N{H_2}

    D

    O‾−CH2CH2NH2\overline O - C{H_2}C{H_2}N{H_2}

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Organic Chemistry: Some basic principles and techniques
    🎯Topic:Electron Displacements
    🎓 Ncert Level:Analyzing
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Basicity, inductive effect, electron donating groups, electron withdrawing groups

    10.

    Which of the following group show −m - m and −I - I. effect

    A

    −NO2 - N{O_2}

    B

    −NH2 - N{H_2}

    C

    −OH - OH

    D

    −Cl - Cl

    Question Tags
    📚 Subject:Chemistry
    📑 Chapter:Organic Chemistry: Some basic principles and techniques
    🎯Topic:Electron Displacements
    🎓 Ncert Level:Application
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Inductive effect, Mesomeric effect, Electron withdrawing groups

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