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Haloalkanes and Haloarenes — JEE Main & Advanced NSEC PYQs

17 previous year questions from Haloalkanes and Haloarenes with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

17 questionsNSECSolutions on every page
1

The compound that reacts fastest with methylamine is

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A group which departs from the substrate in a nucleophilic substitution reaction is called a leaving group. The ease of departure is determined by the acidity of the conjugate acid

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The correct order of the ability of the leaving groups is

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An alkyl halide ( X ) on reaction with ethanolic sodium hydroxide forms an alkene ( Y ) which on further reaction with HBr gives the same alkyl halide. The alkene ( Y ) on reaction

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Nepetalactone ( X ) is isolated as an oil from Catnip. The number of chiral carbon atoms and the amount of KOH consumed by 83 mg of Nepatalactone are respectively

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In a process n -propyl chloride is reacted with sodium butanoate in an aqueous medium. After the reaction diethyl ether is added and the solution is shaken. The two layers are sepa

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The compound which would undergo a reaction with ammonia by S _ N 1 mechanism is

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The increasing reactivity of the sites (a-d) in the following compound in S _ N 1 reaction is

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Compound ' Y ' with molecular formula C ₈ H ₉ Br gives a precipitate on heating with alcoholic AgNO ₃ . Oxidation of ' Y ' gives product ' Z ' ( C ₈ H ₆ O ₄ ) which gives an anhydr

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The number of stereoisomers possible for the following compound

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The Newman projection shown is the same as

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The compound ' X ' undergoing the following reaction is

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The correct sequence of reactions to get ' Q ' as the only product from ' P ' is

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The number of products from the following, which cannot be formed on nitration of 1,3-dichlorobenzene with a mixture of concentrated nitric acid and sulfuric acid is

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Certain organic reactions proceed through formation of intermediates which are highly strained and reactive. Given the following reaction, the correct statement about the mechanism

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The product obtained on reaction of optically pure 1-bromo-1-phenyl ethane with CH ₃ OH , is:

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3-chlorotoluene is reacted with a mixture of conc. H ₂ SO ₄ and HNO ₃ . The product/s formed is/are:

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