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MCQ (Single Correct Answer)

JEE Main 2024 (Online) 1st February Evening Shift
In the given reactions identify $A$ and $B$ ...
JEE Main 2024 (Online) 1st February Evening Shift
Acid D formed in above reaction is :...
JEE Main 2024 (Online) 31st January Evening Shift
Major product of the following reaction is - ...
JEE Main 2024 (Online) 30th January Evening Shift
Products A and B formed in the following set of reactions are ...
JEE Main 2024 (Online) 30th January Morning Shift
Compound A formed in the following reaction reacts with B gives the product C. Find out A and B. ...
JEE Main 2024 (Online) 30th January Morning Shift
In the given reactions, identify the reagent A and reagent B. ...
JEE Main 2024 (Online) 29th January Morning Shift
Identify product A and product B : ...
JEE Main 2024 (Online) 29th January Morning Shift
The final product A formed in the following multistep reaction sequence is ...
JEE Main 2024 (Online) 27th January Evening Shift
The final product A, formed in the following reaction sequence is: ...
JEE Main 2023 (Online) 15th April Morning Shift
The product formed in the following multistep reaction is : ...
JEE Main 2023 (Online) 13th April Morning Shift
In the above reaction, left hand side and right hand side rings are named as '$$\mathrm{A}$$' and 'B' respectively. They undergo ring expansion. The ...
JEE Main 2023 (Online) 11th April Evening Shift
The major product formed in the following reaction is Choose the correct answer from the options given below :...
JEE Main 2023 (Online) 11th April Evening Shift
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R. In the light of the above statements, choose th...
JEE Main 2023 (Online) 6th April Evening Shift
Find out the major product from the following reaction. ...
JEE Main 2023 (Online) 6th April Evening Shift
In the following reaction, 'B' is ...
JEE Main 2023 (Online) 1st February Evening Shift
'$$\mathrm{X}$$' is : ...
JEE Main 2023 (Online) 1st February Morning Shift
But-2-yne is reacted separately with one mole of Hydrogen as shown below : A. A is more soluble than B. B. The boiling point & melting point of A...
JEE Main 2023 (Online) 31st January Evening Shift
A hydrocarbon ' $\mathrm{X}$ ' with formula $\mathrm{C}_{6} \mathrm{H}_{8}$ uses two moles of $\mathrm{H}_{2}$ on catalytic hydrogenation of its one m...
JEE Main 2023 (Online) 31st January Morning Shift
Choose the correct set of reagents for the following conversion. trans $$\left(\mathrm{Ph}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{3}\right) \rightarrow ...
JEE Main 2023 (Online) 30th January Morning Shift
The major products 'A' and 'B', respectively, are ...
JEE Main 2023 (Online) 29th January Evening Shift
The one giving maximum number of isomeric alkenes on dehydrohalogenation reaction is (excluding rearrangement)
JEE Main 2023 (Online) 25th January Morning Shift
The correct sequence of reagents for the preparation of Q and R is :...
JEE Main 2023 (Online) 24th January Evening Shift
Find out the major products from the following reactions. ...
JEE Main 2023 (Online) 24th January Morning Shift
In the following given reaction, 'A' is ...
JEE Main 2022 (Online) 26th July Morning Shift
$$ \stackrel{\bullet}{\mathrm{Cl}}+\mathrm{CH}_{4} \rightarrow \mathrm{A}+\mathrm{B} $$ A and B in the above atmospheric reaction step are :...
JEE Main 2022 (Online) 25th July Evening Shift
Major product of the following reaction is ...
JEE Main 2022 (Online) 25th July Morning Shift
A compound ‘$$\mathrm{A}$$’ on reaction with ‘$$\mathrm{X}$$’ and ‘$$\mathrm{Y}$$’ produces the same major product but different by product '$$a$$' an...
JEE Main 2022 (Online) 29th June Morning Shift
Two isomers 'A' and 'B' with molecular formula C4H8 give different products on oxidation with KMnO4 in acidic medium. Isomer 'A' on reaction with KMnO...
JEE Main 2022 (Online) 27th June Evening Shift
What will be the major product of following sequence of reactions? ...
JEE Main 2022 (Online) 27th June Evening Shift
Product 'A' of following sequence of reactions is ...
JEE Main 2022 (Online) 26th June Evening Shift
The major product in the following reaction ...
JEE Main 2022 (Online) 25th June Morning Shift
The product formed in the following reaction. ...
JEE Main 2022 (Online) 24th June Evening Shift
Given below are two statements : Statement I : The presence of weaker $$\pi$$-bonds make alkenes less stable than alkanes. Statement II : The strength...
JEE Main 2022 (Online) 24th June Evening Shift
Which of the following reagents / reactions will convert 'A' to 'B' ? ...
JEE Main 2021 (Online) 1st September Evening Shift
The stereoisomers that are formed by electrophilic addition of bromine to trans-but-2-ene is/are :
JEE Main 2021 (Online) 31st August Evening Shift
For the following sequence of reactions, the correct products are :...
JEE Main 2021 (Online) 27th July Evening Shift
The correct sequence of correct reagents for the following transformation is :...
JEE Main 2021 (Online) 27th July Morning Shift
Presence of which reagent will affect the reversibility of the following reaction, and change it to a irreversible reaction :CH4 + I2 $$\mathrel{\math...
JEE Main 2021 (Online) 25th July Morning Shift
An organic compound 'A' C4H8 on treatment with KMnO4/H+ yields compound 'B' C3H6O.Compound 'A' also yields compound 'B' an ozonolysis. Compound 'A' is...
JEE Main 2021 (Online) 20th July Evening Shift
Metallic sodium does not react normally with :
JEE Main 2021 (Online) 20th July Evening Shift
Benzene on nitration gives nitrobenzene in presence of HNO3 and H2SO4 mixture, where :
JEE Main 2021 (Online) 20th July Evening Shift
Major product P of above reaction, is :...
JEE Main 2021 (Online) 20th July Morning Shift
For above chemical reactions, identify the correct statement from the following :...
JEE Main 2021 (Online) 18th March Morning Shift
Match List - I with List - II :List - I (Chemicals)(a) Alcoholic potassium hydroxide(b) Pd/BaSO4(c) BHC (Benzene hexachloride)(d) PolyacetyleneList - ...
JEE Main 2021 (Online) 17th March Evening Shift
Choose the correct statement regarding the formation of carbocations A and B given....
JEE Main 2021 (Online) 17th March Evening Shift
Given below are two statements :Statement I : 2-methylbutane on oxidation with KMnO4 gives 2-methylbutan-2-ol.Statement II : n-alkanes can be easily o...
JEE Main 2021 (Online) 16th March Evening Shift
An unsaturated hydrocarbon X on ozonolysis gives A. Compound A when warmed with ammonical silver nitrate forms a bright silver mirror along the sides ...
JEE Main 2021 (Online) 16th March Morning Shift
Which of the following is Lindlar catalyst?
JEE Main 2021 (Online) 26th February Evening Shift
In $$\mathop C\limits^1 {H_2} = \mathop C\limits^2 = \mathop C\limits^3 H - \mathop C\limits^4 {H_3}$$ molecule, the hybridization of carbon 1, 2, 3 ...
JEE Main 2021 (Online) 25th February Evening Shift
The correct sequence of reagents used in the preparation of 4-bromo-2-nitroethyl benzene from benzene is :
JEE Main 2021 (Online) 25th February Evening Shift
The major product of the following reaction is :...
JEE Main 2021 (Online) 25th February Morning Shift
Identify A in the given chemical reaction. ...
JEE Main 2021 (Online) 24th February Evening Shift
The correct order of the following compounds showing increasing tendency towards nucleophilic substitution reaction is : ...
JEE Main 2021 (Online) 24th February Morning Shift
Identify products A and B. ...
JEE Main 2020 (Online) 6th September Morning Slot
The major product of the following reaction is : ...
JEE Main 2020 (Online) 6th September Morning Slot
The major product obtained from the following reaction is : ...
JEE Main 2020 (Online) 3rd September Morning Slot
Which of the following compounds produces an optically inactive compound on hydrogenation?
JEE Main 2020 (Online) 2nd September Morning Slot
The major product in the following reaction is : ...
JEE Main 2020 (Online) 9th January Morning Slot
The correct order of heat of combustion for following alkadienes is : ...
JEE Main 2020 (Online) 9th January Morning Slot
The major product (Y) in the following reactions is : ...
JEE Main 2020 (Online) 8th January Evening Slot
The major product [B] in the following sequence of reactions is :- ...
JEE Main 2020 (Online) 8th January Evening Slot
The major product in the following reaction is: ...
JEE Main 2020 (Online) 7th January Evening Slot
In the following reactions sequence, structure of A and B respectively will be : ...
JEE Main 2020 (Online) 7th January Morning Slot
Consider the following reaction : $${\left( {C{H_3}} \right)_3}CCH\left( {OH} \right)C{H_3}\buildrel {conc.\,\,\,{H_2}S{O_4}} \over \longrightarrow $...
JEE Main 2019 (Online) 12th April Evening Slot
In the following skew conformation of ethane, H'–C–C–H'' dihedral angle is : ...
JEE Main 2019 (Online) 12th April Evening Slot
Consider the following reactions : 'A' is :...
JEE Main 2019 (Online) 12th April Morning Slot
But-2-ene on reaction with alkaline KMnO4 at elevated temperature followed by acidification will give :
JEE Main 2019 (Online) 12th April Morning Slot
The major product of the following addition reaction is : H3C–CH=CH2 $$\buildrel {C{l_2}/{H_2}O} \over \longrightarrow $$
JEE Main 2019 (Online) 9th April Evening Slot
Increasing order of reactivity of the following compounds for SN1 substitution is: ...
JEE Main 2019 (Online) 9th April Evening Slot
Which of the following potential energy (PE) diagrams represents the SN1 reaction?
JEE Main 2019 (Online) 9th April Morning Slot
The major product of the following reaction is : ...
JEE Main 2019 (Online) 9th April Morning Slot
The major product of the following reaction is : ...
JEE Main 2019 (Online) 8th April Evening Slot
Polysubstitution is a major drawback in:
JEE Main 2019 (Online) 12th January Evening Slot
The major product of the following reaction is – ...
JEE Main 2019 (Online) 12th January Evening Slot
The major product of the following reaction is : ...
JEE Main 2019 (Online) 12th January Evening Slot
The major product of the following reaction is – ...
JEE Main 2019 (Online) 12th January Morning Slot
The correct order for acid strength of compounds : CH $$ \equiv $$ CH, CH3–C $$ \equiv $$ CH and CH2 = CH2 is as follows ...
JEE Main 2019 (Online) 12th January Morning Slot
The major product of the following reaction is ...
JEE Main 2019 (Online) 11th January Morning Slot
Which compound (s) out of the following is/are not aromatic ? ...
JEE Main 2019 (Online) 10th January Morning Slot
The major product of the following reaction is ...
JEE Main 2019 (Online) 10th January Morning Slot
The major product of the following reaction is : ...
JEE Main 2018 (Online) 16th April Morning Slot
The major product of the following reaction is : ...
JEE Main 2018 (Offline)
The trans-alkenes are formed by the reduction of alkynes with
JEE Main 2018 (Online) 15th April Evening Slot
The major product formed in the following reaction is : ...
JEE Main 2018 (Online) 15th April Evening Slot
When 2-butyne is treate with H2/Lindlar's catalyst, compound X is produced as the major product and when treated with Na/liq. NH3 it produces Y as th...
JEE Main 2018 (Online) 15th April Morning Slot
Which of the following will most readily give the dehydrohalogenation product ?
JEE Main 2017 (Online) 9th April Morning Slot
The major product of the following reaction is : ...
JEE Main 2016 (Online) 10th April Morning Slot
Consider the reaction sequence below : X is:...
JEE Main 2016 (Online) 9th April Morning Slot
5 L of an alkane requires 25 L of oxygen for its complete combustion. If all volumes are measured at constant temperature and pressure, the alkane is ...
JEE Main 2016 (Offline)
At 300 K and 1 atm, 15 mL of a gaseous hydrocarbon requires 375 mL air containing 20% O2 by volume for complete combustion. After combustion the gases...
JEE Main 2016 (Offline)
The reaction of propene with HOCl (Cl2 + H2O) proceeds through the intermediate:
AIEEE 2012
Which branched chain isomer of the hydrocarbon with molecular mass 72u gives only one isomer of mono substituted alkyl halide ?
AIEEE 2012
2–Hexyne gives trans–2–Hexene on treatment with :
AIEEE 2011
Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence of :
AIEEE 2010
The main product of the following reaction is $$\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,$$ $${C_6}{H_5}C{H_2}CH\left( {OH} \right)CH{\left( {C{H_...
AIEEE 2008
The hydrocarbon which can react with sodium in liquid ammonia is
AIEEE 2008
Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotised and then heated with cu...
AIEEE 2008
In the following sequence of reactions, the alkene affords the compound ‘B’ CH3 - CH = CH - CH3 $$\buildrel {{O_3}} \over \longrightarrow $$ A $$\ma...
AIEEE 2008
The treatment of $$C{H_3}MgX\,\,$$ with $$C{H_3}C \equiv C - H$$ produces
AIEEE 2007
Which of the following reactions will yield 2, 2-dibromopropane?
AIEEE 2007
The reaction of toluene with Cl2 in presence of FeCl3 gives predominantly
AIEEE 2006
The alkene formed as a major product in the above elimination reaction is ...
AIEEE 2005
Reaction of one molecule of HBr with one molecule of 1,3-butadiene at 40oC gives predominantly
AIEEE 2005
Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds is
AIEEE 2005
2 methylbutane on reacting with bromine in the presence of sunlight gives mainly
AIEEE 2005
Which types of isomerism is shown by 2,3-dichlorobutane?
AIEEE 2004
Which one of the following has the minimum boiling point?
AIEEE 2003
On mixing a certain alkane with chlorine and irradiating it with ultravioletlight, it forms only one monochloroalkane. This alkane could be
AIEEE 2003
Butene-1 may be converted to butane by reaction with
AIEEE 2002
Which of these will not react with acetylene ?
AIEEE 2002
What is the product when acetylene reacts with hypochlorous acid ?
AIEEE 2002
Acetylene does not react with :

Numerical

JEE Main 2024 (Online) 29th January Morning Shift
Consider the given reaction. The total number of oxygen atom/s present per molecule of the product $$(\mathrm{P})$$ is _________....
JEE Main 2023 (Online) 13th April Morning Shift
For the given reaction The total number of possible products formed by tertiary carbocation of A is ____________....
JEE Main 2023 (Online) 11th April Evening Shift
The number of possible isomeric products formed when 3-chloro-1-butene reacts with $$\mathrm{HCl}$$ through carbocation formation is __________....
JEE Main 2023 (Online) 8th April Morning Shift
Molar mass of the hydrocarbon (X) which on ozonolysis consumes one mole of $$\mathrm{O}_{3}$$ per mole of $$(\mathrm{X})$$ and gives one mole each of ...
JEE Main 2023 (Online) 6th April Morning Shift
Number of bromo derivatives obtained on treating ethane with excess of $$\mathrm{Br}_{2}$$ in diffused sunlight is ___________
JEE Main 2023 (Online) 29th January Morning Shift
17 mg of a hydrocarbon (M.F. $$\mathrm{C_{10}H_{16}}$$) takes up 8.40 mL of the H$$_2$$ gas measured at 0$$^\circ$$C and 760 mm of Hg. Ozonolysis of t...
JEE Main 2023 (Online) 24th January Evening Shift
Maximum number of isomeric monochloro derivatives which can be obtained from 2,2,5,5-tetramethylhexane by chlorination is _____________
JEE Main 2022 (Online) 24th June Morning Shift
The major product 'A' of the following given reaction has _____________ sp2 hybridized carbon atoms. ...
JEE Main 2021 (Online) 25th July Evening Shift
Consider the above chemical reaction. The total number of stereoisomers possible for Product 'P' is _____________....
JEE Main 2021 (Online) 25th July Morning Shift
The number of sigma bonds in is _______________....
JEE Main 2021 (Online) 25th February Morning Shift
Consider the following chemical reaction. The number of sp2 hybridized carbon atom(s) present in the product is ________....
JEE Main 2020 (Online) 5th September Morning Slot
The minimum number of moles of O2 required for complete combustion of 1 mole of propane and 2 moles of butane is _____.
JEE Main 2020 (Online) 3rd September Morning Slot
The total number of monohalogenated organic products in the following (including stereoisomers) reaction is ______. ...
JEE Main 2020 (Online) 8th January Evening Slot
In the following sequence of reactions the maximum number of atoms present in molecule 'C' in one plane is _________. (A is a lowest molecular weight...
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