JEE Main PYQs — Haloalkanes & Haloarenes

The products A and B in the following reactions, respectively are: A Ag-NO2 CH3-CH2-CH2-Br AgCN B

Propane molecule on chlorination under photochemical condition gives two di-chloro products, "x" and "y". Amongst "x" and "y", "x" is an optically active molecule. How many tri-chloro products…

When sec-butylcyclohexane reacts with bromine in the presence of sunlight, the major product is:

Choose the correct set of reagents for the following conversion.

Predict the major product of the following reaction sequence:

In the following series of reactions identify the major products A & B respectively.

An optically active alkyl halide C4H9Br [A] reacts with hot KOH dissolved in ethanol and forms product which reacts with bromine to give dibromide [C]. The compound [C] is converted into a gas [D]…

The maximum number of RBr producing 2-Methylbutane by above sequence of reactions is __________. (Consider the structural isomers only)

The ascending order of relative rate of solvolysis of following compounds is:

The structure of the major product formed in the following reaction is:

The products A and B in the following reactions, respectively are

The product B formed in the following reaction sequence is: (Major product)

The major product of the following reaction is:

Which among the following halides will generate the most stable carbocation in the nucleophilic substitution reaction?

Given below are two statements: Statement-I: The conversion proceeds well in the less polar medium. {CH}_3{CH}_2{CH}_2{CH}_2{Cl} {{HO}^-} {CH}_3{CH}_2{CH}_2{CH}_2{OH} + {Cl}^- Statement-II: The…

Example of vinylic halide is

Identify product A and product B:

The correct statement regarding nucleophilic substitution reaction in a chiral alkyl halide is:

Which among the following halide/s will not show SN1 reaction:

Alkyl halide is converted into alkyl isocyanide by reaction with

The product (C) in the below mentioned reaction is:

Acid D formed in above reaction is:

Identify B and C and how are A and C related?

Identify the correct set of reagents or reaction conditions 'X' and 'Y' in the following set of transformation.

Find out the major product formed from the following reaction.

Major product P is:

Identify the major product in the following reaction.

Consider the above chemical reaction. Product "A" is:

Which among the following compounds will undergo fastest SN2 reaction.

In the following sequence of reaction, the major products B and C respectively are:

In the above reaction product 'P' is:

In the following given reaction 'A' is

The graph which represents the following reaction is:

The compound which will have the lowest rate towards nucleophilic aromatic substitution on treatment with OH⁻ is:

Decreasing order towards SN1 reaction for the following compounds is:

Choose the halogen which is most reactive towards SN1 reaction in the given compounds (A, B, C & D):

Consider the following reaction that goes from A to B in three steps as shown below: Choose the correct: | | Number of intermediates | Number of Activated complexes | Rate determining step |…

Where Nu = Nucleophile Find out the correct statement from the options given below for the above 2 reactions.

2-Methyl propyl bromide reacts with C2H5O and gives 'A' whereas on reaction with C2H5OH it gives 'B'. The mechanism followed in these reactions and the products 'A' and 'B' respectively are:

Identify the correct order for the given property for following compounds:

Compound from the following that will not produce precipitate on reaction with AgNO3 is:

The correct order of reactivity of following haloarenes towards nucleophilic substitution with aqueous NaOH is: Choose the correct answer from the options given below:

The major product formed in the Friedel-Craft acylation of chlorobenzene is:

The isomeric deuterated bromide with molecular formula C4H8DBr having two chiral carbon atoms is:

For the reaction: The correct statement from the following is:

Identify the correct order of reactivity for the following pairs towards the respective mechanism:

Considering the below reactions, the compound 'A' and compound 'B', respectively are:

In the following halogenated organic compounds the one with maximum number of chlorine atoms in its structure is:

Which of the following compounds is an example of Freon?

Which of the following is true about freons?

The IUPAC name of ethylidene chloride is:

Compound 'A' undergoes following sequence of reactions to give compound 'B'. The correct structure and chirality of compound 'B' is [where Et is -C2H5]:

The major product in the reaction, is:

The major product of the following reaction is:

Which one of the following compounds is inactive towards SN1 reaction?

In the above reaction (A) is:

Two isomers (A) and (B) with molar mass 184 g/mol and elemental composition C, 52.2%; H, 4.9% and Br 42.9% gave benzoic acid and p-bromobenzoic acid, respectively on oxidation with KMnO4. Isomer 'A'…

The major product of the above reaction is:

In the given reaction, 'A' can be:

In the following reaction:

In the following sequence of reactions, the P is:

Among the following compounds I-IV, which one forms a yellow precipitate on reacting sequentially with (i) NaOH (ii) dil. HNO3 (iii) AgNO3?

Choose the correct statement regarding the formation of carbocations A and B given.

Excess of isobutane on reaction with Br2 in presence of light at 125°C gives which one of the following, as the major product?

What is A in the following reaction?

The correct order of reactivity of the given chlorides with acetate in acetic acid is:

The product formed in the first step of the reaction of

Presence of which reagent will affect the reversibility of the following reaction to make it irreversible reaction:

What is the major product formed by HI on reaction with

The correct order of the following compounds showing increasing tendency towards nucleophilic substitution reaction is:

The correct decreasing order of densities of the following compounds is:

The major product of the following reaction is:

The major product (A) formed in the reaction given below is:

Consider the reaction sequence given below: Which of the following statements is true?

The major product in the following reaction is:

The decreasing order of reactivity of the following organic molecules towards AgNO3 solution is:

The mechanism of SN1 reaction is given as: A student writes general characteristics based on the given mechanism as: (A) The reaction is favoured by weak nucleophiles. (B) R⁺ would be easily formed…

Among the following compounds, which one has the shortest C–Cl bond?

Which of the following compounds will form the precipitate with aq. AgNO3 solution most readily?

In Carius method of estimation of halogen, 0.172 g of an organic compound showed presence of 0.08 g of bromine. Which of these is the correct structure of the compound?

The major product obtained from E2-elimination of 3-bromo-2-fluoropentane is:

In the following reaction sequence, structure of A and B respectively will be:

The decreasing order of reactivity of the following compounds towards nucleophilic substitution (SN2) is:

For the following reactions, ks and ke are respectively, the rate constants for substitution and elimination reactions and = kske, the correct option is:

Consider the following reactions, which of these reaction(s) will not produce Saytzeff product? Which of these reaction(s) will not produce Saytzeff product?

The decreasing order of reactivity towards dehydrohalogenation (E1) reaction of the following compounds is:

The major product of the following reaction is:

What is the IUPAC name of the following compound?

The increasing order of reactivity of the following compounds towards aromatic electrophilic substitution reaction is:

Increasing order of reactivity of the following compounds for SN1 substitution is:

The major product obtained in the given reaction is:

Which one of the following is likely to give a precipitate with AgNO3 solution?

The major product of the following reaction is:

The major product of the following reaction is:

The major product of the following reaction is:

Which of the following potential energy (PE) diagrams represents the SN1 reaction?

The major product of the following reaction is:

The major product of the following reaction is:

Heating of 2-chloro-1-phenylbutane with EtOK/EtOH gives X as the major product. Reaction of X with Hg(OAc)2/H2O followed by NaBH4 gives Y as the major product. Y is:

Increasing rate of SN1 reaction in the following compounds is:

The major product of the following reaction is:

The major product 'Y' in the following reaction is: