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QJEE MAIN 2026
$$ \mathrm{Ph}-\mathrm{CH}=\mathrm{CH}_2 \xrightarrow[\mathrm{HBr}]{(\mathrm{PhCOO})_2} \text { Product } $$ Consider the above reaction A. The reaction proceeds through a more stable radical intermediate. B. The...
JEE MainChemistryHard
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QJEE MAIN 2026
Consider a weak base ' B ' of $\mathrm{pK}_{\mathrm{b}}=5.699$ ' $x$ ' mL of 0.02 M HCl and ' y ' mL of 0.02 M...
JEE MainChemistryMedium
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QJEE MAIN 2026
Method used for separation of mixture of products ( B and C ) obtained in the following reaction is
JEE MainChemistryMedium
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QJEE MAIN_2026
The reactions which produce alcohol as the product are: A. $\mathrm{CH}_4+\mathrm{O}_2 \xrightarrow[\Delta]{\mathrm{Mo}_2 \mathrm{O}_3}$ B. $2 \mathrm{CH}_3 \mathrm{CH}_3+3 \mathrm{O}_2 \xrightarrow[\Delta]{\left(\mathrm{CH}_3, \mathrm{COO}\right)_2 \mathrm{Mn}}$ C. $\left(\mathrm{CH}_3\right)_3 \mathrm{CH} \xrightarrow{\mathrm{KMnO}_4}$...
JEE MainChemistryMedium
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QJEE MAIN_2026_
Identify the correct statements: The presence of $-\mathrm{NO}_2$ group in benzene ring A. activates the ring towards electrophilic substitutions. B. deactivates the ring towards electrophilic...
JEE MainChemistryEasy
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QJEE MAIN 2026
Consider the following compounds Arrange these compounds in the increasing order of reactivity with nitrating...
JEE MainChemistryEasy
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QJEE MAIN 2026
But-2-yne and hydrogen (one mole each) are separately treated with (i) $\mathrm{Pd} / \mathrm{C}$ and (ii) $\mathrm{Na} /$ liq. $\mathrm{NH}_3$ to give the products X...
JEE MainChemistryEasy
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QJEE MAIN 2026
The cycloalkene ( $X$ ) on bromination consumes one mole of bromine per mole of ( $X$ ) and gives the product $(\mathrm{Y})$ in which...
JEE MainChemistryEasy
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QJEE MAIN 2026
Given below are two statements: Statement I: Benzene is nitrated to give nitrobenzene, which on further treatment with $\mathrm{CH}_3 \mathrm{COCl} / \mathrm{AlCl}_3$ will give...
JEE MainChemistryEasy
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QJEE MAIN 2026
3, 3-Dimethyl-2-butanol cannot be prepared by : Choose the correct answer from the options given...
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