Solved papers for NEET Chemistry NEET PYQ-Hydrocarbons

done NEET PYQ-Hydrocarbons Total Questions - 27

• question_answer1) When acetylene is passed through dil.  in presence of  the compound formed is: [AIPMT 1999]
  A)
  ether
  done clear
  B)
  ketone
  done clear
  C)
  acetic acid
  done clear
  D)
  acetaldehyde
  done clear
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• question_answer2)  chlorination of n-butane, will be:                         [AIPMT 2001]
  A)
  meso form
  done clear
  B)
  racemic mixture
  done clear
  C)
  d-form
  done clear
  D)
  -form
  done clear
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• question_answer3) Which alkene on ozonolysis gives  and ?          [AIPMT 2001]
  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
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• question_answer4) The compound  on reaction with  the presence of  gives: [AIPMT 2003]
  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
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• question_answer5) Reaction of HBr with propene in the presence of peroxide gives:                          [AIPMT (S) 2004]
  A)
  isopropyl bromide
  done clear
  B)
  3-bromo propane
  done clear
  C)
  allyl bromide
  done clear
  D)
  n-propyl bromide
  done clear
  View Answer play_arrow

• question_answer6) Products of the following reaction:  …. are: [AIPMT (S) 2005]
  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
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• question_answer7) Which one of the following alkenes will react faster with  under catalytic hydrogenation conditions? [AIPMT (S) 2005]
  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
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• question_answer8) Predict the product C obtained in the following reaction of butyne-1. [AIPMT (S) 2007]
  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
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• question_answer9) Which of the compounds with molecular formula  yields acetone on ozonolysis?            [AIPMT (S) 2007]
  A)
  2-methyl-2-butene
  done clear
  B)
  3-methyl-l-butene
  done clear
  C)
  Cyclopentane
  done clear
  D)
  2-methyl-l-butene
  done clear
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• question_answer10) The sequence of ionic mobility in aqueous solution is                           [AIPMT (S) 2008]
  A)
   
  done clear
  B)
   
  done clear
  C)
   
  done clear
  D)
   
  done clear
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• question_answer11)  A (Predominantly) is  [AIPMT (S) 2008]
  A)
  
  done clear
  B)
   
  done clear
  C)
  
  done clear
  D)
  
  done clear
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• question_answer12) Liquid hydrocarbons can be converted to a mixture of gaseous hydrocarbons by         [AIPMT (S) 2010]
  A)
  oxidation
  done clear
  B)
  cracking
  done clear
  C)
  distillation under reduced pressure
  done clear
  D)
  hydrolysis
  done clear
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• question_answer13) In the following reaction,     [AIPMT (S) 2012]
  A)
   
  done clear
  B)
   
  done clear
  C)
  
  done clear
  D)
   
  done clear
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• question_answer14) Which of the following reagents will be able to distinguish between 1-butyne and 2-butyne?    [AIPMT (M) 2012]
  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
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• question_answer15) Identity Z in the sequence of reactions,                                                   [AIPMT 2014]   
  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
   
  done clear
  View Answer play_arrow

• question_answer16) The reaction of  with  produces                     [NEET 2015 [C]]
  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
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• question_answer17) 

  A single compound of the structure is [NEET 2015 ]

  obtainable from ozonolysis of which of the following cyclic compounds?

  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
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• question_answer18) 

  Given,

  The enthalpy of hydrogenation of these compounds will be in the order as [NEET 2015 ]

  A)
  I > II > III
  done clear
  B)
  III > II > I
  done clear
  C)
  II > III > I
  done clear
  D)
  II > I > III
  done clear
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• question_answer19) 

  Which of the following is not the product of dehydration of                  [NEET 2015 (Re)]

  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
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• question_answer20) In the reaction with HCl, an alkene reacts in accordance with the Markownikoffs rule, to give a product 1-chloro-1- methylcyclohexane. The possible alkane is [NEET 2015 (Re)]
  A)
  
  done clear
  B)
   
  done clear
  C)
  [a] and [b]
  done clear
  D)
  None of these
  done clear
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• question_answer21) 2, 3-dimethyl-2-butene can be prepared by heating which of the following compounds with a strong acid?[NEET 2015 (Re)]
  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
  View Answer play_arrow

• question_answer22) In the reaction   X and Y are   [NEET - 2016]
  A)
  X = 1-Butyne; Y = 3-Hexyne
  done clear
  B)
  X = 2-Butyne; Y = 3-Hexyne
  done clear
  C)
  X = 2-Butyne; Y = 2-Hexyne
  done clear
  D)
  X = 1-Butyne; Y = 2-Hexyne
  done clear
  View Answer play_arrow

• question_answer23) 

  Predict the correct intermediate and product in the following reaction            [NEET-2017]

  A)
              
  done clear
  B)
           
  done clear
  C)
           
  done clear
  D)
          
  done clear
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• question_answer24) The number of sigma (\[\sigma \]) and pi (\[\pi \]) bonds in pent-2-en-4-yne is-              [NEET 2019]
  A)
  11 \[\sigma \] bonds and 2 \[\pi \] bonds
  done clear
  B)
  13 \[\sigma \] bonds and no  bond
  done clear
  C)
  10  bonds and 3  bonds
  done clear
  D)
  8  bonds and 5 bonds
  done clear
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• question_answer25) 

  Elimination reaction of 2-Bromo-pentane to form pent-2-ene is                                  [NEET 2020]

  [a] \[\beta \]-Elimination reaction

  [b] Follows Zaitsev rule

  [c] Dehydrohalogenation reaction

  [d] Dehydration reaction

  A)
  [a], [c], [d], [b]
  done clear
  B)
  [b], [c], [d], [a]
  done clear
  C)
  [a], [b], [d], [c]
  done clear
  D)
  [a], [b], [c], [d]
  done clear
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• question_answer26) An alkene on ozonolysis gives methanal as one of the product. Its structure is  [NEET 2020]
  A)
  
  done clear
  B)
  
  done clear
  C)
  
  done clear
  D)
  
  done clear
  View Answer play_arrow

• question_answer27) Which of the following alkane cannot be made in good yield by Wurtz reaction?          [NEET 2020]
  A)
  2, 3-Dimethylbutane
  done clear
  B)
  n-Heptane
  done clear
  C)
  n-Butane
  done clear
  D)
  n-Hexane
  done clear
  View Answer play_arrow