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CBSE Class 12 Chemistry 2016 Delhi Set 1 Solved Paper

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Question : 1 of 26
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Out of CH3−CH∣CH3−CH2−Cl\mathrm{CH}_3-\underset{\mathrm{CH}_3}{\underset{\vert}{\mathrm{CH}}}-\mathrm{CH}_2-\mathrm{Cl} and CH3−CH2−CH∣CH3−Cl\mathrm{CH}_3-\mathrm{CH}_2-\underset{\mathrm{CH}_3}{\underset{\vert}{\mathrm{CH}}}-\mathrm{Cl}, which is more reactive towards SN1\mathrm{S_N 1} reaction and why?
Solution:  
CH3CH2CH(Cl)CH3\mathrm{CH}_3\mathrm{CH}_2\mathrm{CH}(\mathrm{Cl})\mathrm{CH}_3; secondary halide / 2∘2^{\circ} carbocation is more stable.
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