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JEE CHEMISTRY MCQ: ORGANIC CHEMISTRY-SOME BASIC PRINCIPLES AND TECHNIQUES

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The most stable free radical is
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Correct option: D
PhC∙HMe{\text{Ph}}\mathop {\text{C}}\limits^ \bullet {\text{HMe}}
Option D is correct because PhC∙HMe{\text{Ph}}\mathop {\text{C}}\limits^ \bullet {\text{HMe}} is the most stable free radical due to resonance stabilization from the phenyl group and hyperconjugation from the methyl group.

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Keto-enol tautomerism is not observe in How many isomers of C5H11OH{C_5}{H_{11}}OH will be primary alcohols? Which statement is true? Common reactions of benzene and its derivatives are: How many structural formulae are possible for C5H11Cl?{\mathrm{C}_5}{\mathrm{H}_{11}}\mathrm{Cl}? Assertion (A): The compounds that have the same constitution and sequence of covalent bonds but differ in relative positions of their atoms or groups in space are called stereoisomers.

Reason (R): Stereoisomerism is a special type of isomerism which can be classified as geometrical and optical isomerism
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