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NEET

Hydrocarbons

Chemistry

Previous Years Questions

MCQ (Single Correct Answer)

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The correct structure of 2, 6-dimethyl-dec-4-ene is
NEET 2021
As alkene on ozonolysis gives methanol as one of the product, Its structure is :
NEET 2020 Phase 1
An alkene “A” on reaction with O3 and Zn + H2O gives propanone and ethanal in equimolar ratio. Addition of HCl to alkene...
NEET 2019
The most suitable reagent for the following conversion, is : ...
NEET 2019
Hydrocarbon (A) reacts with bromine by substitution to form an alkyl bromide which by Wurtz reaction is converted to gas...
NEET 2018
With respect to the conformers of ethane, which of the following statements is true?
NEET 2017
Predict the correct intermediate and product in the following reaction : $${H_3}C - C \equiv CH\mathrel{\mathop{\kern0pt...
NEET 2017
Which one is the correct order of acidity?
NEET 2017
In the reaction X and Y are...
NEET 2016 Phase 1
The pair of electrons in the given carbanion, CH3C $$ \equiv $$ C$$-$$, is present in which of the following orbitals? ...
NEET 2016 Phase 1
The correct statement regarding the comparison of staggered and eclipsed conformations of ethane, is
NEET 2016 Phase 1
Consider the nitration of benzene using mixed conc.H2SO4 and HNO3. If a large amount of KHSO4 is added to the mixture, t...
NEET 2016 Phase 1
The compound that will react most readily with gaseous bromine has the formula
NEET 2016 Phase 2
Which of the following compounds shall not produce propene by reaction with HBr followed by elimination or direct only e...
NEET 2016 Phase 2
In the given reaction, the product P is ...
NEET 2016 Phase 2
In pyrrole the electron density is maximum on ...
NEET 2016 Phase 2
In which of the following molecules, all atoms are coplanar?
NEET 2016 Phase 2
Which of the following can be used as the halide component for Friedel-Crafts reaction?
NEET 2016 Phase 2
Given : The enthalpy of hydrogenation of these compounds will be in the order as ...
AIPMT 2015 Cancelled Paper
A single compound of the structure, is obtainable from ozonolysis of which of the following cyclic compounds? ...
AIPMT 2015 Cancelled Paper
In the reaction with HCl, an alkene reacts in accordance with the Markovnikov's rule to give a product 1-chloro-1 methyl...
AIPMT 2015
2,3-Dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid?
AIPMT 2015
Which of the following organic compounds has same hybridization as its combustion product (CO2)?
AIPMT 2014
Identify Z in the sequence of reactions : ...
AIPMT 2014
What products are formed when the following compound is treated with Br2 in the presence of FeBr3? ...
AIPMT 2014
In the following reaction : Product 'P' will not give...
NEET 2013 (Karnataka)
Which of the following chemical system is non aromatic ?
NEET 2013 (Karnataka)
Which of the following compounds will not undergo Friedal-Craft's reaction easily?
NEET 2013
Which of the following reagents will be able to distinguish between 1-butyne and 2-butyne?
AIPMT 2012 Mains
Which of the following acids does not exhibit optical isomerism?
AIPMT 2012 Prelims
In the following reaction The major product is ...
AIPMT 2012 Prelims
Among the following compounds the one that is most reactive towards electrophilic nitration is
AIPMT 2012 Prelims
In a set of reactions, ethylbenzene yielded a product D. D would be...
AIPMT 2010 Prelims
Which of the following conformers for ethylene glycol is most stable?
AIPMT 2010 Mains
The reaction of toluene with Cl2 in presence of FeCl3 gives X and reaction in presence of light gives Y. Thus, X and Y a...
AIPMT 2010 Prelims
Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by
AIPMT 2010 Prelims
In the following the most stable conformation of n-butane is
AIPMT 2010 Prelims
Which of the following compounds will exhibit cis-trans (geometrical) isomerism?
AIPMT 2009
Benzene reacts with CH3Cl in the presence of anhydrons AlCl3 to form
AIPMT 2009
The state of hybridisation of C2, C3, C5 and C6 of the hydrocarbon, is in the following sequence...
AIPMT 2009
In the hydrocarbon, The state of hybridization of carbons 1, 3 and 5 are in the following sequence...
AIPMT 2008
A (predominantly) is ...
AIPMT 2008
Which of the compound with molecular formula C5H10 yields acetone on ozonolysis?
AIPMT 2007
Predict the product C obtained in the following reaction of 1-butyne. ...
AIPMT 2007
Which one of the following alkenes will react faster with H2 under catalytic hydrogenation conditions ?
AIPMT 2005
Products of the following reaction : ...
AIPMT 2005
Reaction of HBr with propene in the presence of peroxide gives
AIPMT 2004
Using anhydrous AlCl3 as catalyst, which one of the following reactions produces ethylbenzene (PhEt)?
AIPMT 2004
The correct order of reactivity towards the electrophilic substitution of the compounds aniline (I), benzene (II) and ni...
AIPMT 2003
Which one of the following is a free-radical substitution reaction ?
AIPMT 2003
The compound on reaction with NaIO4 in the presence of KMnO4 gives ...
AIPMT 2003
When CH3CH2CHCl2 is treated with NaNH2, the product formed is
AIPMT 2002
The correct acidic order of the following is ...
AIPMT 2001
In preparation of alkene from alcohol using Al2O3 which is the effective factor ?
AIPMT 2001
Dihedral angle in staggered form of ethane is
AIPMT 2000
2-Butene shows geometrical isomerism due to
AIPMT 2000
Increasing order of electrophilic substitution for following compounds ...
AIPMT 2000
In Friedel-Crafts reaction , toluene can be prepared by
AIPMT 2000
Which is maximum stable?
AIPMT 2000
Which reagent converts propene to 1-propanol ?
AIPMT 2000

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