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    NEET 2026 Preparation Tips for Chemistry, Biology and Physics

    Tautomerism NEET MCQ - NEET Practice Questions with Answers

    Edited By admin | Updated on Sep 25, 2023 25:24 PM | #NEET

    Quick Facts

    • Applications of Hyerconjugation - 1 is considered one of the most asked concept.

    • 43 Questions around this concept.

    Solve by difficulty

    Identify the compound that exhibits tautomerism.

    Which of the following is a condition for tautomerism in nitrocompounds ? 

    Given:

    Which of the given compounds can exhibit tautomerism ?

    The enolic form of ethyl acetoacetate as below has:

    In which of the following compounds, the C - CI bond ionisation shall give most stable carbonium ion ?

    In which of the following compounds. the C-Cl bond ionisation shall give most stable carbonium ion?

    $\mathrm{CH}_3 \mathrm{COONa} \xrightarrow[\mathrm{CaO}_2, \Delta]{\mathrm{NaOH}} A \xrightarrow[h v]{\text { leq Cl2 }} B \xrightarrow[\text { Ether }]{\mathrm{Na}}$

    The product C is

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     Which one of the following substituents at para-position is most effective in stabilizing the phenoxide ion ?

    Which one of the following is optically inactive?

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    Two possible stereo-structures of CH3CHOH.COOH, which are optically active, are called:

    Concepts Covered - 4

    Question of Tautomerism

    Tautomers are isomers of a compound which differ only in the position of the protons and electrons. The carbon skeleton of the compound is unchanged. A reaction which involves simple proton transfer in an intramolecular fashion is called tautomerism.

    Application of Inductive Effect

    The decreasing -I effect or increasing +I effect order is as follows:
    –NH3+ > –NO2 > –SO2R > –CN > –SO3H > –CHO > –CO > –COOH > -F > –COCl > -CONH2 > –Cl > –Br > –I > –OR > -OH > -NR2 > –NH2 > –C6H5 > –CH=CH2 > –H

    Applications of Hyerconjugation - 1

    In hyperconjugation, more is the number of \alpha-carbons, more is the number of hyperconjugated structures and thus more is the stability. Thus, stability follows the given order:
    3o carbocation > 2o carbocation > 1o carbocation

    Mixed Questions - 1

    Try to solve the miscellaneous problems given in the video.

    Study it with Videos

    Question of Tautomerism
    Application of Inductive Effect
    Applications of Hyerconjugation - 1

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    Books

    Reference Books

    Question of Tautomerism

    Chemistry Part II Textbook for Class XI

    Page No. : 348

    Line : 18

    Application of Inductive Effect

    Chemistry Part II Textbook for Class XI

    Page No. : 352

    Line : 1

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