Chemistry of Hydrocarbons MCQs for MDCAT Practice

Chemistry section, Chemistry of Hydrocarbons chapter. Sample questions from past PMC papers.

1. Question 1
   Which of the following is correct for the organic compound called halohydrine?
   • A.Having OH and halogen at geminal position
   • B.Having OH and -OR group at vicinal position
   • C.Having ester and ether functional group
   • D.Having OH and halogen at adjacent position
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2. Question 2
   The simplest alkene is
   • A.Methane
   • B.Ethane
   • C.Ethene
   • D.Propene
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3. Question 3
   In addition of HCI to CH3CH=CH2, which one will be added first:
   • A.Cl+
   • B.Cl-1
   • C.H+
   • D.H∘
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4. Question 4
   1,4-dimethylbenzene is called ______.
   • A.Ortho-xylene
   • B.Para-xylene
   • C.Para-methyl toluene
   • D.Meta-methyl toluene
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5. Question 5
   IUPAC name of the compound CH3(CH2)4CH(CH3)2:
   • A.Octane
   • B.3-methylheptane
   • C.4-methylheptane
   • D.2-methylheptane
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6. Question 6
   Which method is generally used to prepare alkynes?
   • A.Dehydrohalogenation of vicinal dihalide
   • B.Hydrogenation of alkene
   • C.Hydrolysis
   • D.Hydration of alkene
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7. Question 7
   Identify the smallest alkane which can form a ring structure (cycloalkane)?
   • A.Cyclomethane
   • B.Methane
   • C.Cyclopropane
   • D.Propane
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8. Question 8
   Alkenes mostly follow the reaction of
   • A.Addition reaction
   • B.Elimination reaction
   • C.Substitution reaction
   • D.None of them
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