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Tautomerism NEET MCQ - NEET Practice Questions with Answers
Edited By admin | Updated on Sep 25, 2023 25:24 PM | #NEET
Quick Facts
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Applications of Hyerconjugation - 1 is considered one of the most asked concept.
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41 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
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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Try NowTwo 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 -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.
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