Hydrocarbons
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Hydrocarbons
154 questions · Chemistry · JEE Main
- Given below are two statements : Statement (I) : Neopentane forms only one monosubstituted derivative. Statement (II) : Melting point of neopentane is higher than n-pentane. In the light of the above statements, choose the most appropriate…2025 · 2 Apr · Shift 2 · Q1 · MCQ
- Match List - I with List - II. Includes table Includes diagram2025 · 2 Apr · Shift 2 · Q2 · MCQ
- 2025 · 3 Apr · Shift 1 · Q9 · MCQ
- Predict the major product of the following reaction sequence:- Includes diagram2025 · 4 Apr · Shift 1 · Q2 · MCQ
- The reactions which cannot be applied to prepare an alkene by elimination, are Choose the correct answer from the options given below: Includes diagram2025 · 7 Apr · Shift 1 · Q16 · MCQ
- Given below are two statements: Statement I : Ozonolysis followed by treatment with of cis-2-butene gives ethanal. Statement II : The product obtained by ozonolysis followed by treatment with …2025 · 7 Apr · Shift 1 · Q20 · MCQ
- Given below are two statements : Statement I : One mole of propyne reacts with excess of sodium to liberate half a mole of gas. Statement II : Four g of propyne reacts with to liberate gas…2025 · 22 Jan · Shift 1 · Q13 · MCQ
- When sec-butylcyclohexane reacts with bromine in the presence of sunlight, the major product is :2025 · 22 Jan · Shift 2 · Q1 · MCQ
- The alkane from below having two secondary hydrogens is :2025 · 22 Jan · Shift 2 · Q15 · MCQ
- The compound with molecular formula , which gives only one monobromo derivative and takes up four moles of hydrogen per mole for complete hydrogenation has electrons.2025 · 22 Jan · Shift 2 · Q25 · Numerical
- Match the List - I with List - II Choose the correct answer from the options given below: Includes table2025 · 23 Jan · Shift 1 · Q15 · MCQ
- Match List - I with List - II Choose the correct answer from the options given below : Includes table Includes diagram2025 · 23 Jan · Shift 2 · Q9 · MCQ
- The product formed in the following reaction sequence is Includes diagram2025 · 24 Jan · Shift 1 · Q8 · MCQ
- The product B formed in the following reaction sequence is: Includes diagram2025 · 28 Jan · Shift 2 · Q1 · MCQ
- Identify product [A], [B] and [C] in the following reaction sequence. …2025 · 28 Jan · Shift 2 · Q10 · MCQ
- The sum of sigma (σ) and pi (π) bonds in Hex-1,3-dien-5-yne is .2025 · 29 Jan · Shift 1 · Q25 · Numerical
- Total number of sigma (σ) and pi(π) bonds respectively present in hex-1-en-4-yne are:2025 · 29 Jan · Shift 2 · Q17 · MCQ
- Isomeric hydrocarbons → negative Baeyer’s test (Molecular formula ) The total number of isomers from above with four different non-aliphatic substitution sites is -2025 · 29 Jan · Shift 2 · Q25 · Numerical
- In the given reactions identify and Includes diagram2024 · 1 Feb · Shift 2 · Q1 · MCQ
- Acid D formed in above reaction is : Includes diagram2024 · 1 Feb · Shift 2 · Q10 · MCQ
- In the above chemical reaction sequence "" and "" respectively are Includes diagram2024 · 4 Apr · Shift 2 · Q20 · MCQ
- Given below are two statements : Statement I : Nitration of benzene involves the following step - Statement II : Use of Lewis base promotes the electrophilic substitution of benzene. In the light of the above statements, choose the most… Includes diagram2024 · 5 Apr · Shift 1 · Q4 · MCQ
- The major product of the following reaction is P. …2024 · 6 Apr · Shift 1 · Q21 · Numerical
- The major products from the following reaction sequence are product A and product B. The total sum of electrons in product A and product B are (nearest integer) Includes diagram2024 · 6 Apr · Shift 1 · Q25 · Numerical
- Consider the above chemical reaction. Product "A" is : Includes diagram2024 · 6 Apr · Shift 2 · Q8 · MCQ
- In the given compound, the number of 2 carbon atom/s is . Includes diagram2024 · 8 Apr · Shift 1 · Q14 · MCQ
- Major product B of the following reaction has -bond. Includes diagram2024 · 8 Apr · Shift 1 · Q23 · Numerical
- Given below are two statements : Statement (I) : reactions are 'stereospecific', indicating that they result in the formation of only one stereo-isomer as the product. Statement (II) : $\mathrm{S}_{\mathrm{N}}…2024 · 8 Apr · Shift 2 · Q15 · MCQ
- Identify the product A and product B in the following set of reactions. Includes diagram2024 · 9 Apr · Shift 1 · Q1 · MCQ
- The incorrect statement regarding ethyne is2024 · 9 Apr · Shift 2 · Q20 · MCQ
- The final product A, formed in the following reaction sequence is: Includes diagram2024 · 27 Jan · Shift 2 · Q17 · MCQ
- The final product A formed in the following multistep reaction sequence is Includes diagram2024 · 29 Jan · Shift 1 · Q13 · MCQ
- Consider the given reaction. The total number of oxygen atom/s present per molecule of the product is . Includes diagram2024 · 29 Jan · Shift 1 · Q23 · Numerical
- Identify product A and product B : Includes diagram2024 · 29 Jan · Shift 1 · Q4 · MCQ
- In the given reactions, identify the reagent A and reagent B. Includes diagram2024 · 30 Jan · Shift 1 · Q14 · MCQ
- Compound A formed in the following reaction reacts with B gives the product C. Find out A and B. Includes diagram2024 · 30 Jan · Shift 1 · Q6 · MCQ
- Products A and B formed in the following set of reactions are Includes diagram2024 · 30 Jan · Shift 2 · Q16 · MCQ
- Major product of the following reaction is - Includes diagram2024 · 31 Jan · Shift 2 · Q1 · MCQ
- 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 are higher and lower than B respectively. C. A is more polar than B because dipole moment… Includes diagram2023 · 1 Feb · Shift 1 · Q5 · MCQ
- '' is : Includes diagram2023 · 1 Feb · Shift 2 · Q3 · MCQ
- Number of bromo derivatives obtained on treating ethane with excess of in diffused sunlight is 2023 · 6 Apr · Shift 1 · Q14 · Numerical
- In the following reaction, 'B' is Includes diagram2023 · 6 Apr · Shift 2 · Q10 · MCQ
- Find out the major product from the following reaction. Includes diagram2023 · 6 Apr · Shift 2 · Q4 · MCQ
- Molar mass of the hydrocarbon (X) which on ozonolysis consumes one mole of per mole of and gives one mole each of ethanal and propanone is (Molar mass…2023 · 8 Apr · Shift 1 · Q20 · Numerical
- 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 the correct answer from the options given below: Includes diagram2023 · 11 Apr · Shift 2 · Q12 · MCQ
- The number of possible isomeric products formed when 3-chloro-1-butene reacts with through carbocation formation is .2023 · 11 Apr · Shift 2 · Q15 · Numerical
- The major product formed in the following reaction is Choose the correct answer from the options given below : Includes diagram2023 · 11 Apr · Shift 2 · Q2 · MCQ
- In the above reaction, left hand side and right hand side rings are named as '' and 'B' respectively. They undergo ring expansion. The correct statement for this process is: Includes diagram2023 · 13 Apr · Shift 1 · Q11 · MCQ
- For the given reaction The total number of possible products formed by tertiary carbocation of A is . Includes diagram2023 · 13 Apr · Shift 1 · Q17 · Numerical
- The product formed in the following multistep reaction is : Includes diagram2023 · 15 Apr · Shift 1 · Q13 · MCQ
- In the following given reaction, 'A' is Includes diagram2023 · 24 Jan · Shift 1 · Q6 · MCQ
- Maximum number of isomeric monochloro derivatives which can be obtained from 2,2,5,5-tetramethylhexane by chlorination is 2023 · 24 Jan · Shift 2 · Q17 · Numerical
- Find out the major products from the following reactions. Includes diagram2023 · 24 Jan · Shift 2 · Q2 · MCQ
- The correct sequence of reagents for the preparation of Q and R is : Includes diagram2023 · 25 Jan · Shift 1 · Q2 · MCQ
- 17 mg of a hydrocarbon (M.F. ) takes up 8.40 mL of the H gas measured at 0 C and 760 mm of Hg. Ozonolysis of the same hydrocarbon yields The number of double bond/s present in the hydrocarbon is … Includes diagram2023 · 29 Jan · Shift 1 · Q21 · Numerical
- The one giving maximum number of isomeric alkenes on dehydrohalogenation reaction is (excluding rearrangement)2023 · 29 Jan · Shift 2 · Q12 · MCQ
- The major products 'A' and 'B', respectively, are Includes diagram2023 · 30 Jan · Shift 1 · Q2 · MCQ
- Choose the correct set of reagents for the following conversion. trans 2023 · 31 Jan · Shift 1 · Q10 · MCQ
- A hydrocarbon ' ' with formula uses two moles of on catalytic hydrogenation of its one mole. On ozonolysis, '' yields two moles of methane dicarbaldehyde. The…2023 · 31 Jan · Shift 2 · Q10 · MCQ
- The major product 'A' of the following given reaction has sp2 hybridized carbon atoms. Includes diagram2022 · 24 Jun · Shift 1 · Q21 · Numerical
- Given below are two statements : Statement I : The presence of weaker -bonds make alkenes less stable than alkanes. Statement II : The strength of the double bond is greater than that of carbon-carbon single bond. In the light of the…2022 · 24 Jun · Shift 2 · Q10 · MCQ
- Which of the following reagents / reactions will convert 'A' to 'B' ? Includes diagram2022 · 24 Jun · Shift 2 · Q11 · MCQ
- A compound ‘’ on reaction with ‘’ and ‘’ produces the same major product but different by product '' and '. Oxidation of '' gives a substance produced by ants. 'X' and 'Y' respectively… Includes diagram2022 · 25 Jul · Shift 1 · Q6 · MCQ
- Major product of the following reaction is Includes diagram2022 · 25 Jul · Shift 2 · Q8 · MCQ
- The product formed in the following reaction. Includes diagram2022 · 25 Jun · Shift 1 · Q9 · MCQ
- A and B in the above atmospheric reaction step are :2022 · 26 Jul · Shift 1 · Q6 · MCQ
- The major product in the following reaction Includes diagram2022 · 26 Jun · Shift 2 · Q9 · MCQ
- Product 'A' of following sequence of reactions is Includes diagram2022 · 27 Jun · Shift 2 · Q10 · MCQ
- What will be the major product of following sequence of reactions? Includes diagram2022 · 27 Jun · Shift 2 · Q9 · MCQ
- Two isomers 'A' and 'B' with molecular formula give different products on oxidation with in acidic medium. Isomer 'A' on reaction with / results in effervescence of a gas and gives ketone. The compound 'A' is2022 · 29 Jun · Shift 1 · Q5 · MCQ
- The stereoisomers that are formed by electrophilic addition of bromine to trans-but-2-ene is/are :2021 · 1 Sep · Shift 2 · Q8 · MCQ
- Which of the following is Lindlar catalyst?2021 · 16 Mar · Shift 1 · Q10 · MCQ
- An unsaturated hydrocarbon X on ozonolysis gives A. Compound A when warmed with ammonical silver nitrate forms a bright silver mirror along the sides of the test tube. The unsaturated hydrocarbon X is :2021 · 16 Mar · Shift 2 · Q3 · MCQ
- Choose the correct statement regarding the formation of carbocations A and B given. Includes diagram2021 · 17 Mar · Shift 2 · Q2 · MCQ
- Given below are two statements : Statement I : 2-methylbutane on oxidation with gives 2-methylbutan-2-ol. Statement II : n-alkanes can be easily oxidised to corresponding alcohols with . Choose the correct option :2021 · 17 Mar · Shift 2 · Q6 · MCQ
- Match List - I with List - II : List - I (Chemicals) (a) Alcoholic potassium hydroxide (b) Pd/ (c) BHC (Benzene hexachloride) (d) Polyacetylene List - II (Use / Preparation / Constituent) (i) Electrodes in batteries (ii) Obtained…2021 · 18 Mar · Shift 1 · Q8 · MCQ
- For above chemical reactions, identify the correct statement from the following : Includes diagram2021 · 20 Jul · Shift 1 · Q11 · MCQ
- Benzene on nitration gives nitrobenzene in presence of and mixture, where :2021 · 20 Jul · Shift 2 · Q11 · MCQ
- Major product P of above reaction, is : Includes diagram2021 · 20 Jul · Shift 2 · Q13 · MCQ
- Metallic sodium does not react normally with :2021 · 20 Jul · Shift 2 · Q6 · MCQ
- Identify products A and B. Includes diagram2021 · 24 Feb · Shift 1 · Q11 · MCQ
- The correct order of the following compounds showing increasing tendency towards nucleophilic substitution reaction is : Includes diagram2021 · 24 Feb · Shift 2 · Q1 · MCQ
- Consider the following chemical reaction. The number of sp2 hybridized carbon atom(s) present in the product is . Includes diagram2021 · 25 Feb · Shift 1 · Q20 · Numerical
- Identify A in the given chemical reaction. Includes diagram2021 · 25 Feb · Shift 1 · Q4 · MCQ
- The correct sequence of reagents used in the preparation of 4-bromo-2-nitroethyl benzene from benzene is :2021 · 25 Feb · Shift 2 · Q1 · MCQ
- The major product of the following reaction is : Includes diagram2021 · 25 Feb · Shift 2 · Q7 · MCQ
- An organic compound 'A' on treatment with / yields compound 'B' . Compound 'A' also yields compound 'B' an ozonolysis. Compound 'A' is :2021 · 25 Jul · Shift 1 · Q14 · MCQ
- The number of sigma bonds in is . Includes diagram2021 · 25 Jul · Shift 1 · Q15 · Numerical
- Consider the above chemical reaction. The total number of stereoisomers possible for Product 'P' is . Includes diagram2021 · 25 Jul · Shift 2 · Q19 · Numerical
- In molecule, the hybridization of carbon 1, 2, 3 and 4 respectively, are :2021 · 26 Feb · Shift 2 · Q3 · MCQ
- Presence of which reagent will affect the reversibility of the following reaction, and change it to a irreversible reaction : + $$\mathrel{\mathop{\kern0pt\rightleftharpoons} \limits_{{\mathop{\rm Re} olimits}…2021 · 27 Jul · Shift 1 · Q7 · MCQ
- The correct sequence of correct reagents for the following transformation is : Includes diagram2021 · 27 Jul · Shift 2 · Q12 · MCQ
- For the following sequence of reactions, the correct products are : Includes diagram2021 · 31 Aug · Shift 2 · Q13 · MCQ
- The major product in the following reaction is : Includes diagram2020 · 2 Sep · Shift 1 · Q18 · MCQ
- Which of the following compounds produces an optically inactive compound on hydrogenation?2020 · 3 Sep · Shift 1 · Q18 · MCQ
- The total number of monohalogenated organic products in the following (including stereoisomers) reaction is . Includes diagram2020 · 3 Sep · Shift 1 · Q8 · Numerical
- The minimum number of moles of required for complete combustion of 1 mole of propane and 2 moles of butane is .2020 · 5 Sep · Shift 1 · Q17 · Numerical
- The major product obtained from the following reaction is : Includes diagram2020 · 6 Sep · Shift 1 · Q10 · MCQ
- The major product of the following reaction is : Includes diagram2020 · 6 Sep · Shift 1 · Q14 · MCQ
- Consider the following reaction : …2020 · 7 Jan · Shift 1 · Q9 · MCQ
- In the following reactions sequence, structure of A and B respectively will be : Includes diagram2020 · 7 Jan · Shift 2 · Q9 · MCQ
- The major product in the following reaction is: Includes diagram2020 · 8 Jan · Shift 2 · Q14 · MCQ
- The major product [B] in the following sequence of reactions is :- Includes diagram2020 · 8 Jan · Shift 2 · Q6 · MCQ
- 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 alkyne) Includes diagram2020 · 8 Jan · Shift 2 · Q9 · Numerical
- The major product (Y) in the following reactions is : Includes diagram2020 · 9 Jan · Shift 1 · Q16 · MCQ
- The correct order of heat of combustion for following alkadienes is : Includes diagram2020 · 9 Jan · Shift 1 · Q6 · MCQ
- Polysubstitution is a major drawback in:2019 · 8 Apr · Shift 2 · Q2 · MCQ
- The major product of the following reaction is : Includes diagram2019 · 9 Apr · Shift 1 · Q1 · MCQ
- The major product of the following reaction is : Includes diagram2019 · 9 Apr · Shift 1 · Q18 · MCQ
- Increasing order of reactivity of the following compounds for SN1 substitution is: Includes diagram2019 · 9 Apr · Shift 2 · Q17 · MCQ
- Which of the following potential energy (PE) diagrams represents the SN1 reaction?2019 · 9 Apr · Shift 2 · Q5 · MCQ
- The major product of the following reaction is : Includes diagram2019 · 10 Jan · Shift 1 · Q1 · MCQ
- The major product of the following reaction is Includes diagram2019 · 10 Jan · Shift 1 · Q6 · MCQ
- Which compound (s) out of the following is/are not aromatic ? Includes diagram2019 · 11 Jan · Shift 1 · Q13 · MCQ
- The major product of the following addition reaction is : –= 2019 · 12 Apr · Shift 1 · Q11 · MCQ
- But-2-ene on reaction with alkaline at elevated temperature followed by acidification will give :2019 · 12 Apr · Shift 1 · Q13 · MCQ
- In the following skew conformation of ethane, H'–C–C–H'' dihedral angle is : Includes diagram2019 · 12 Apr · Shift 2 · Q22 · MCQ
- Consider the following reactions : 'A' is : Includes diagram2019 · 12 Apr · Shift 2 · Q7 · MCQ
- The correct order for acid strength of compounds : CH CH, –C CH and = is as follows2019 · 12 Jan · Shift 1 · Q17 · MCQ
- The major product of the following reaction is Includes diagram2019 · 12 Jan · Shift 1 · Q5 · MCQ
- The major product of the following reaction is – Includes diagram2019 · 12 Jan · Shift 2 · Q22 · MCQ
- The major product of the following reaction is – Includes diagram2019 · 12 Jan · Shift 2 · Q4 · MCQ
- The major product of the following reaction is : Includes diagram2019 · 12 Jan · Shift 2 · Q6 · MCQ
- Which of the following will most readily give the dehydrohalogenation product ?2018 · 15 Apr · Shift 1 · Q4 · MCQ
- When 2-butyne is treate with /Lindlar's catalyst, compound X is produced as the major product and when treated with Na/liq. it produces Y as the major product Which of the following statements is correct ?2018 · 15 Apr · Shift 2 · Q5 · MCQ
- The major product formed in the following reaction is : Includes diagram2018 · 15 Apr · Shift 2 · Q9 · MCQ
- The major product of the following reaction is : Includes diagram2018 · 16 Apr · Shift 1 · Q6 · MCQ
- The trans-alkenes are formed by the reduction of alkynes with2018 · Shift 0 · Q8 · MCQ
- The major product of the following reaction is : Includes diagram2017 · 9 Apr · Shift 1 · Q5 · MCQ
- 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 :2016 · 9 Apr · Shift 1 · Q6 · MCQ
- Consider the reaction sequence below : X is: Includes diagram2016 · 10 Apr · Shift 1 · Q6 · MCQ
- The reaction of propene with ( + ) proceeds through the intermediate:2016 · Shift 0 · Q4 · MCQ
- At 300 K and 1 atm, 15 mL of a gaseous hydrocarbon requires 375 mL air containing 20% by volume for complete combustion. After combustion the gases occupy 345 mL. Assuming that the water formed is in liquid form and the volumes were…2016 · Shift 0 · Q5 · MCQ
- 2–Hexyne gives trans–2–Hexene on treatment with :2012 · Shift 0 · Q3 · MCQ
- Which branched chain isomer of the hydrocarbon with molecular mass 72u gives only one isomer of mono substituted alkyl halide ?2012 · Shift 0 · Q4 · MCQ
- Ozonolysis of an organic compound gives formaldehyde as one of the products. This confirms the presence of :2011 · Shift 0 · Q3 · MCQ
- The main product of the following reaction is 2010 · Shift 0 · Q12 · MCQ
- In the following sequence of reactions, the alkene affords the compound ‘B’ A B The compound B is2008 · Shift 0 · Q1 · MCQ
- The treatment of with produces2008 · Shift 0 · Q12 · MCQ
- Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotised and then heated with cuprous bromide. The reaction mixture so formed contains2008 · Shift 0 · Q2 · MCQ
- The hydrocarbon which can react with sodium in liquid ammonia is2008 · Shift 0 · Q3 · MCQ
- The reaction of toluene with in presence of gives predominantly2007 · Shift 0 · Q31 · MCQ
- Which of the following reactions will yield 2, 2-dibromopropane?2007 · Shift 0 · Q9 · MCQ
- The alkene formed as a major product in the above elimination reaction is Includes diagram2006 · Shift 0 · Q21 · MCQ
- Reaction of one molecule of HBr with one molecule of 1,3-butadiene at 40oC gives predominantly2005 · Shift 0 · Q13 · MCQ
- Of the five isomeric hexanes, the isomer which can give two monochlorinated compounds is2005 · Shift 0 · Q14 · MCQ
- 2 methylbutane on reacting with bromine in the presence of sunlight gives mainly2005 · Shift 0 · Q15 · MCQ
- Which types of isomerism is shown by 2,3-dichlorobutane?2005 · Shift 0 · Q17 · MCQ
- Which one of the following has the minimum boiling point?2004 · Shift 0 · Q8 · MCQ
- On mixing a certain alkane with chlorine and irradiating it with ultravioletlight, it forms only one monochloroalkane. This alkane could be2003 · Shift 0 · Q14 · MCQ
- Butene-1 may be converted to butane by reaction with2003 · Shift 0 · Q15 · MCQ
- Which of these will not react with acetylene ?2002 · Shift 0 · Q17 · MCQ
- What is the product when acetylene reacts with hypochlorous acid ?2002 · Shift 0 · Q18 · MCQ
- Acetylene does not react with :2002 · Shift 0 · Q60 · MCQ