Haloalkanes and Haloarenes · Chemistry · JEE Main

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MCQ (Single Correct Answer)

JEE Main 2024 (Online) 9th April Morning Shift
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : $$\mathrm{S}_{\mathrm{N}} 2...
JEE Main 2024 (Online) 9th April Morning Shift
In the following sequence of reaction, the major products B and C respectively are : ...
JEE Main 2024 (Online) 8th April Morning Shift
Which among the following compounds will undergo fastest SN2 reaction.
JEE Main 2024 (Online) 5th April Evening Shift
Identify the major product in the following reaction. ...
JEE Main 2024 (Online) 4th April Evening Shift
Product P is...
JEE Main 2024 (Online) 4th April Evening Shift
$$\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Br}+\mathrm{NaOH} \xrightarrow{\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}} \text { Product 'A' }$$ Con...
JEE Main 2024 (Online) 4th April Evening Shift
Find out the major product formed from the following reaction. $$[\mathrm{Me}:-\mathrm{CH}_3]$$ ...
JEE Main 2024 (Online) 4th April Morning Shift
Identify B and C and how are A and C related?...
JEE Main 2024 (Online) 4th April Morning Shift
Identify the correct set of reagents or reaction conditions '$$X$$' and '$$Y$$' in the following set of transformation. ...
JEE Main 2024 (Online) 1st February Morning Shift
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Haloalkanes react with KCN ...
JEE Main 2024 (Online) 31st January Evening Shift
Identify A and B in the following reaction sequence. ...
JEE Main 2024 (Online) 31st January Morning Shift
The product (C) in the below mentioned reaction is : $$\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{Br} \xrightarrow[\Delta]{\mathrm{KOH}_{(\text...
JEE Main 2024 (Online) 30th January Evening Shift
Given below are two statements: Statement - I: High concentration of strong nucleophilic reagent with secondary alkyl halides which do not have bulky ...
JEE Main 2024 (Online) 30th January Morning Shift
Example of vinylic halide is :
JEE Main 2024 (Online) 30th January Morning Shift
The final product A, formed in the following multistep reaction sequence is : ...
JEE Main 2024 (Online) 30th January Morning Shift
Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : $$\mathrm{CH}_2=\mathrm{CH}...
JEE Main 2024 (Online) 29th January Evening Shift
Alkyl halide is converted into alkyl isocyanide by reaction with
JEE Main 2024 (Online) 29th January Morning Shift
Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R : Assertion A : Aryl halides cannot be prepared ...
JEE Main 2024 (Online) 27th January Evening Shift
Identify B formed in the reaction. $$\mathrm{Cl}-\left(\mathrm{CH}_2\right)_4-\mathrm{Cl} \xrightarrow{\text { excess } \mathrm{NH}_3} \mathrm{~A} \xr...
JEE Main 2024 (Online) 27th January Evening Shift
Which among the following halide/s will not show $$\mathrm{S_N 1}$$ reaction: (A) $$\mathrm{H}_2 \mathrm{C}=\mathrm{CH}-\mathrm{CH}_2 \mathrm{Cl}$$ (B...
JEE Main 2024 (Online) 27th January Morning Shift
The correct statement regarding nucleophilic substitution reaction in a chiral alkyl halide is ;
JEE Main 2023 (Online) 15th April Morning Shift
The major product formed in the Friedel-Craft acylation of chlorobenzene is
JEE Main 2023 (Online) 13th April Morning Shift
In the following reaction 'X' is ...
JEE Main 2023 (Online) 11th April Evening Shift
Compound from the following that will not produce precipitate on reaction with $$\mathrm{AgNO}_{3}$$ is :
JEE Main 2023 (Online) 11th April Morning Shift
Find out the correct statement from the options given below for the above 2 reactions....
JEE Main 2023 (Online) 10th April Morning Shift
Identify the correct order of reactivity for the following pairs towards the respective mechanism Choose the correct answer from the options given be...
JEE Main 2023 (Online) 10th April Morning Shift
The pair from the following pairs having both compounds with net non-zero dipole moment is
JEE Main 2023 (Online) 8th April Evening Shift
Major product '$$\mathrm{P}$$' formed in the following reaction is: ...
JEE Main 2023 (Online) 8th April Evening Shift
The correct order of reactivity of following haloarenes towards nucleophilic substitution with aqueous $$\mathrm{NaOH}$$ is : Choose the correct answ...
JEE Main 2023 (Online) 8th April Morning Shift
Choose the halogen which is most reactive towards $$\mathrm{S}_{\mathrm{N}} 1$$ reaction in the given compounds (A, B, C & D) ...
JEE Main 2023 (Online) 6th April Morning Shift
For the reaction The correct statement is...
JEE Main 2023 (Online) 31st January Evening Shift
In the following halogenated organic compounds, the one with the maximum number of chlorine atoms in its structure is :
JEE Main 2023 (Online) 31st January Morning Shift
The correct order of melting points of dichlorobenzenes is
JEE Main 2023 (Online) 30th January Evening Shift
Decreasing order towards SN 1 reaction for the following compounds is: ...
JEE Main 2023 (Online) 30th January Morning Shift
Match List I with List II .tg {border-collapse:collapse;border-spacing:0;} .tg td{border-color:black;border-style:solid;border-width:1px;font-family...
JEE Main 2023 (Online) 29th January Morning Shift
Identify the correct order for the given property for following compounds. Choose the correct answer from the option given below :...
JEE Main 2023 (Online) 25th January Evening Shift
The isomeric deuterated bromide with molecular formula $$\mathrm{C_4H_8DBr}$$ having two chiral carbon atoms is
JEE Main 2023 (Online) 25th January Morning Shift
The compound which will have the lowest rate towards nucleophilic aromatic substitution on treatment with OH$$^-$$ is
JEE Main 2023 (Online) 24th January Morning Shift
Assertion A : Hydrolysis of an alkyl chloride is a slow reaction but in the presence of NaI, the rate of the hydrolysis increases. Reason R : I$$^{-}$...
JEE Main 2022 (Online) 29th July Evening Shift
Compound 'A' undergoes following sequence of reactions to give compound 'B'. The correct structure and chirality of compound 'B' is [where Et is $$\le...
JEE Main 2022 (Online) 29th July Morning Shift
Which among the following pairs of the structures will give different products on ozonolysis? (Consider the double bonds in the structures are rigid a...
JEE Main 2022 (Online) 29th July Morning Shift
Considering the above reactions, the compound 'A' and compound 'B' respectively are :...
JEE Main 2022 (Online) 28th July Evening Shift
The major product in the given reaction is ...
JEE Main 2022 (Online) 27th July Evening Shift
Major product '$$\mathrm{B}$$' of the following reaction sequence is : ...
JEE Main 2022 (Online) 29th June Evening Shift
The stable carbocation formed in the above reaction is...
JEE Main 2022 (Online) 29th June Evening Shift
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, ...
JEE Main 2022 (Online) 29th June Morning Shift
In the given conversion the compound A is :...
JEE Main 2022 (Online) 28th June Evening Shift
In the above reaction 'A' is...
JEE Main 2022 (Online) 28th June Morning Shift
The major product (P) in the reaction is...
JEE Main 2022 (Online) 28th June Morning Shift
Which one of the following compounds is inactive towards SN1 reaction?
JEE Main 2022 (Online) 27th June Morning Shift
The major product of the following reaction is : ...
JEE Main 2022 (Online) 26th June Evening Shift
Halogenation of which one of the following will yield m-substituted product with respect to methyl group as a major product?
JEE Main 2022 (Online) 25th June Morning Shift
The major product in the reaction ...
JEE Main 2022 (Online) 24th June Morning Shift
In the given reaction sequence, the major product 'C' is : ...
JEE Main 2021 (Online) 1st September Evening Shift
In the following sequence of reactions,The compounds B and C respectively are :-...
JEE Main 2021 (Online) 31st August Evening Shift
The major product of the following reaction is :...
JEE Main 2021 (Online) 31st August Morning Shift
The correct order of reactivity of the given chlorides with acetate in acetic acid is :
JEE Main 2021 (Online) 27th August Evening Shift
The major product (A) formed in the reaction given below is :...
JEE Main 2021 (Online) 27th August Morning Shift
In the following sequence of reactions the P is :...
JEE Main 2021 (Online) 26th August Evening Shift
Consider the given reaction, the product A is :...
JEE Main 2021 (Online) 26th August Morning Shift
The major product formed in the following reaction is :...
JEE Main 2021 (Online) 26th August Morning Shift
Among the following compounds I-IV, which one forms a yellow precipitate on reacting sequentially with (i) NaOH (ii) dil. HNO3 (iii) AgNO3?...
JEE Main 2021 (Online) 26th August Morning Shift
Excess of isobutane on reaction with Br2 in presence of light at 125$$^\circ$$C gives which one of the following, as the major product?
JEE Main 2021 (Online) 25th July Morning Shift
The given reaction can occur in the presence of :(a) Bromine water(b) Br2 in CS2, 273 K(c) Br2/FeBr3(d) Br2 in CHCl3, 273 KChoose the correct answer f...
JEE Main 2021 (Online) 18th March Evening Shift
Given below are two statements :Statement I : C2H5OH and AgCN both can generate nucleophile.Statement II : KCN and AgCN both will generate nitrile nuc...
JEE Main 2021 (Online) 18th March Evening Shift
Main products formed during a reaction of 1-methoxy naphthalene with hydroiodic acid are :
JEE Main 2021 (Online) 18th March Morning Shift
Reaction of Grignard reagent, C2H5MgBr with C8H8O followed by hydrolysis gives compound "A" which reacts instantly with Lucas reagent to give compound...
JEE Main 2021 (Online) 17th March Evening Shift
The correct pair(s) of the ambident nucleophiles is(are)(A) AgCN/KCN(B) RCOOAg/RCOOK(C) AgNO2/KNO2(D) AgI/KI...
JEE Main 2021 (Online) 17th March Morning Shift
The above reaction requires which of the following reaction conditions?...
JEE Main 2021 (Online) 17th March Morning Shift
Product ''A'' in the above chemical reaction is :...
JEE Main 2021 (Online) 17th March Morning Shift
Which of the following reaction is an example of ammonolysis?
JEE Main 2021 (Online) 16th March Evening Shift
Identify the reagent(s) 'A' and condition(s) for the reaction...
JEE Main 2021 (Online) 16th March Morning Shift
The products ''A'' and ''B'' formed in above reactions are :...
JEE Main 2021 (Online) 26th February Evening Shift
Match List - I with List - II.Choose the correct answer from the options given below :...
JEE Main 2021 (Online) 26th February Morning Shift
For the given reactionWhat is 'A'?...
JEE Main 2021 (Online) 26th February Morning Shift
For the given reaction :What is 'A'?...
JEE Main 2021 (Online) 25th February Morning Shift
Identify A and B in the chemical reaction....
JEE Main 2021 (Online) 24th February Morning Shift
What is the major product formed by HI on reaction with ...
JEE Main 2021 (Online) 24th February Morning Shift
The product formed in the first step of the reaction of with excess $$\mathrm{Mg/Et_2O}$$ ($$\mathrm{Et=C_2H_5}$$) is ...
JEE Main 2020 (Online) 6th September Evening Slot
The increasing order of the boiling points of the major products A, B and C of the following reactions will be : ...
JEE Main 2020 (Online) 5th September Evening Slot
The major product formed in the following reaction is : CH3CH = CHCH(CH3)2 $$\buildrel {HBr} \over \longrightarrow $$...
JEE Main 2020 (Online) 4th September Evening Slot
Among the following compounds, which one has the shortest C – Cl bond?
JEE Main 2020 (Online) 4th September Evening Slot
Which of the following compounds will form the precipitate with aq. AgNO3 solution most readily?
JEE Main 2020 (Online) 4th September Morning Slot
The decreasing order of reactivity of the following organic molecules towards AgNO3 solution is : ...
JEE Main 2020 (Online) 3rd September Evening Slot
The major product in the following reaction is : ...
JEE Main 2020 (Online) 3rd September Evening Slot
The decreasing order of reactivity of the following compounds towards nucleophilic substitution (SN2) is : ...
JEE Main 2020 (Online) 3rd September Morning Slot
The mechanism of SN1 reaction is given as : A student writes general characteristics based on the given mechanism as : (a) The reaction is favoured b...
JEE Main 2020 (Online) 2nd September Evening Slot
The major product obtained from E2 - elimination of 3-bromo-2-fluoropentane is
JEE Main 2020 (Online) 2nd September Evening Slot
Consider the reaction sequence given below: Which of the following statements is true?...
JEE Main 2020 (Online) 2nd September Morning Slot
Which of the following compunds will show retention in configuration on nucleophilic substitution by OH– ion?
JEE Main 2020 (Online) 9th January Evening Slot
Which of the following reactions will not produce a racemic product?
JEE Main 2020 (Online) 9th January Morning Slot
Which of these will produce the highest yield in Friedel Crafts reaction?
JEE Main 2020 (Online) 8th January Morning Slot
The decreasing order of reactivity towards dehydrohalogenation (E1) reaction of the following compounds is : ...
JEE Main 2020 (Online) 7th January Evening Slot
Consider the following reactions : Which of these reactions are possible ?...
JEE Main 2020 (Online) 7th January Evening Slot
For the following reactions Ks and Ke, are respectively, the rate constants for substitution and elimination and $$\mu = {{{k_s}} \over {{k_e}}}$$ t...
JEE Main 2020 (Online) 7th January Morning Slot
1- methyl ethylene oxide when treated with an excess of HBr produces :
JEE Main 2019 (Online) 12th April Evening Slot
An 'Assertion' and a 'Reason' are given below. Choose the correct answer from the following options : Assertion (A) : Vinyl halides do not undergo nuc...
JEE Main 2019 (Online) 12th April Evening Slot
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...
JEE Main 2019 (Online) 12th April Evening Slot
Which one of the following is likely to give a precipitate with AgNO3 solution ?
JEE Main 2019 (Online) 10th April Evening Slot
The major product obtained in the given reaction is : ...
JEE Main 2019 (Online) 10th April Evening Slot
The major product 'Y' in the following reactions is : ...
JEE Main 2019 (Online) 10th April Morning Slot
Increasing rate of SN1 reaction in the following compounds is : ...
JEE Main 2019 (Online) 10th April Morning Slot
The major product of the following reaction is : ...
JEE Main 2019 (Online) 8th April Evening Slot
The major product in the following reaction is : ...
JEE Main 2019 (Online) 8th April Evening Slot
The major product of the following reaction is: ...
JEE Main 2019 (Online) 8th April Evening Slot
Which one of the following alkenes when treated with HCl yields majorly an anti Markovnikov product?
JEE Main 2019 (Online) 12th January Evening Slot
The major product in the following conversion is – ...
JEE Main 2019 (Online) 11th January Evening Slot
Which of the following compounds will produce a precipitate with AgNO3 ?
JEE Main 2019 (Online) 10th January Morning Slot
Which hydrogen in compound (E) is easily replaceable during bromination reaction in presence of light ? ...
JEE Main 2019 (Online) 9th January Morning Slot
The major product of the following reaction is : ...
JEE Main 2019 (Online) 9th January Morning Slot
The major product of the following reaction is : ...
JEE Main 2019 (Online) 9th January Morning Slot
The compounds A and B in the following reaction are, respectively : ...
JEE Main 2018 (Online) 16th April Morning Slot
The major product of the following reaction is : ...
JEE Main 2018 (Online) 16th April Morning Slot
The most polar compound among the following is :
JEE Main 2018 (Offline)
The major product of the following reaction is: ...
JEE Main 2017 (Online) 9th April Morning Slot
In the following reaction sequence : The compound I is : ...
JEE Main 2017 (Online) 8th April Morning Slot
Which of the following compounds will not undergo Friedel Craft’s reaction with benzene ?
JEE Main 2017 (Online) 8th April Morning Slot
The major product of the following reaction is : ...
JEE Main 2017 (Online) 8th April Morning Slot
The major product of the following reaction is : ...
JEE Main 2017 (Offline)
The increasing order of the reactivity of the following halides for the SN1 reaction is : ...
JEE Main 2017 (Offline)
3-Methyl-pent-2-ene on reaction with HBr in presence of peroxide forms an addition product. The number of possible stereoisomers for the product is :
JEE Main 2017 (Offline)
Which of the following, upon treatment with tert-BuONa followed by addition of bromine water, fails to decolorize the colour of bromine?
JEE Main 2017 (Offline)
The major product obtained in the following reaction is : ...
JEE Main 2016 (Online) 10th April Morning Slot
Bromination of cyclohexene under conditions given below yields : ...
JEE Main 2016 (Online) 10th April Morning Slot
Which one of the following reagents is not suitable for the elimination reaction ? ...
JEE Main 2015 (Offline)
The synthesis of alkyl fluorides is best accomplished by:
JEE Main 2014 (Offline)
In SN2 reactions, the correct order of reactivity for the following compounds: CH3Cl, CH3CH 2Cl, (CH3)2CHCl and (CH3)3CCl is: ...
JEE Main 2014 (Offline)
The major organic compound formed by the reaction of 1, 1, 1– trichloroethane with silver powder is:
JEE Main 2013 (Offline)
A solution of (–$$l$$) – chloro –1 – phenylethane in toluene racemises slowly in the presence of a small amount of SbCl5, due to the formation of :...
JEE Main 2013 (Offline)
Compound $$\left( A \right),\,{C_8}{H_9}Br,\,\,\,$$ gives a white precipitate when warmed with alcoholic $$AgN{O_3}.$$ Oxidation of $$(A)$$ gives an ...
AIEEE 2012
How many chiral compounds are possible on monochlorination of 2–methyl butane ?
AIEEE 2012
What is DDT among the following?
AIEEE 2012
Iodoform can be prepared from all except :
AIEEE 2010
Consider the following bromides : The correct order of $${S_N}1$$ reactive is ...
AIEEE 2009
Which of the following on heating with aqueous KOH, produces acetaldehyde ?
AIEEE 2008
The organic chloro compound, which shows complete stereochemical inversion during a SN2 reaction, is
AIEEE 2007
Which of the following is the correct order of decreasing SN2 reactivity?
AIEEE 2006
Fluorobenzene (C6H5F) can be synthesized in the laboratory
AIEEE 2006
Reaction of trans-2-phenyl-1-bromocyclopentane on reaction with alcoholic KOH produces
AIEEE 2006
The structure of the major product formed in the following reaction is ...
AIEEE 2005
Tertiary alkyl halides are practically inert to substitution by SN2 mechanism because of
AIEEE 2005
Elimination of bromine from 2-bromobutane results in the formation of-
AIEEE 2005
Alkyl halides react with dialkyl copper reagents to give
AIEEE 2004
The compound formed on heating chlorobenzene with chloral in the presence concentrated sulphuric acid is
AIEEE 2003
Bottles containing C6H5l and C6H5CH2I lost their original labels. They were labelled A and B for testing A and B were separately taken in test tubes a...
AIEEE 2002
The reaction : $${(CH)_3}C - Br\buildrel {{H_2}O} \over \longrightarrow {(CH)_3}C - OH$$

Numerical

JEE Main 2024 (Online) 6th April Evening Shift
The ratio of number of oxygen atoms to bromine atoms in the product Q is _________ $$\times 10^{-1}$$....
JEE Main 2024 (Online) 5th April Morning Shift
The number of halobenzenes from the following that can be prepared by Sandmeyer's reaction is _________ ...
JEE Main 2024 (Online) 31st January Morning Shift
The total number of hydrogen atoms in product A and product B is _________....
JEE Main 2024 (Online) 30th January Evening Shift
2-chlorobutane $$+\mathrm{Cl}_2 \rightarrow \mathrm{C}_4 \mathrm{H}_8 \mathrm{Cl}_2$$ (isomers) Total number of optically active isomers shown by $$\m...
JEE Main 2023 (Online) 24th January Morning Shift
Number of moles of AgCl formed in the following reaction is _____________ ...
JEE Main 2022 (Online) 26th July Morning Shift
In the presence of sunlight, benzene reacts with Cl2 to give product, X. The number of hydrogens in X is _____________.
JEE Main 2022 (Online) 28th June Evening Shift
The major product of the following reaction contains ____________ bromine atom(s). ...
JEE Main 2022 (Online) 24th June Evening Shift
Consider the above reaction. The number of $$\pi$$ electrons present in the product 'P' is __________....
JEE Main 2021 (Online) 26th August Evening Shift
A chloro compound "A".(i) forms aldehydes on ozonolysis followed by the hydrolysis.(ii) when vaporized completely 1.53 g of A, gives 448 mL of vapour ...
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