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jee_main_2025_02_april_evening - Haloalkanes and Haloarenes Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #0 Chemical Reactions and Named Rules
Match List-I with List-II: beginarray|l|l| hline beginarrayc textbfList-I \\ textbf(Reaction) endarray & beginarrayc textbfList-II \\ textbf(Name of reaction) endarray \\ hline text(A) quad text2Ar-X + text2Na xrightarrowtextDry Ether textAr-Ar + text2NaX & text(I) quad textLucas reaction \\ hline text(B) quad mathrmArN_2^+X^- xrightarrowmathrmCu / HCl mathrmArCl + mathrmN_2 uparrow + mathrmCuX & text(II) quad textFinkelstein reaction \\ hline text(C) quad mathrmC_2H_5Br + mathrmNaI xrightarrowtextDry Acetone mathrmC_2H_5I + mathrmNaBr & text(III) quad textFittig reaction \\ hline text(D) quad mathrmCH_3C(OH)(CH_3)CH_3 xrightarrowmathrmHCl / ZnCl_2 mathrmCH_3C(Cl)(CH_3)CH_3 & text(IV) quad textGatterman reaction \\ hline endarray Choose the correct answer from the options given below:
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QUESTION #48 Elimination and Addition Reaction Sequences
Consider the following sequence of reactions: mathrmCH_3-CH_2-CH_2-CH(Br)-CH_3 xrightarrowtextalcoholic KOH mathrmP text (Major Product) xrightarrowmathrmBr_2 mathrmQ Consider the above sequence of reactions. 151~mathrmg of 2-bromopentane is made to react. Yield of major product mathrmP is 80\% whereas mathrmQ is 100\%. Mass of product mathrmQ obtained is _______ g. Given molar mass in mathrmg~mol^-1 H: 1, C: 12, O: 16, Br: 80
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