Major Competitive Exams

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Q. Which quantum number is not required to describe the electron in an atom? (2019)
  • A. Principal quantum number
  • B. Azimuthal quantum number
  • C. Magnetic quantum number
  • D. Color quantum number
Q. Which quarter showed the lowest overall sales across all products according to the table?
  • A. Q1
  • B. Q2
  • C. Q3
  • D. Q4
Q. Which reaction involves the addition of water to an alkene?
  • A. Hydrogenation
  • B. Hydrolysis
  • C. Hydration
  • D. Dehydration
Q. Which reaction is characteristic of alcohols? (2020)
  • A. Dehydration
  • B. Hydrogenation
  • C. Halogenation
  • D. Oxidation
Q. Which reaction is characteristic of alkenes?
  • A. Hydrogenation
  • B. Halogenation
  • C. Hydrolysis
  • D. Oxidation
Q. Which reaction is characteristic of alkynes?
  • A. Hydrogenation
  • B. Halogenation
  • C. Hydrohalogenation
  • D. All of the above
Q. Which reaction is characteristic of carboxylic acids? (2021)
  • A. Esterification
  • B. Hydrogenation
  • C. Halogenation
  • D. Dehydration
Q. Which reaction is commonly used to convert alkynes to alkenes?
  • A. Hydrogenation
  • B. Halogenation
  • C. Hydroboration
  • D. Dehydrohalogenation
Q. Which reaction is used to convert alkenes to alkanes?
  • A. Hydrogenation
  • B. Halogenation
  • C. Hydrolysis
  • D. Dehydrogenation
Q. Which reaction is used to prepare alkynes from alkenes?
  • A. Hydrogenation
  • B. Dehydrohalogenation
  • C. Hydrohalogenation
  • D. Halogenation
Q. Which reaction is used to prepare amines from alkyl halides? (2020)
  • A. Nitration
  • B. Hydrogenation
  • C. Nucleophilic substitution
  • D. Electrophilic substitution
Q. Which reaction is used to prepare amines from alkyl halides? (2020) 2020
  • A. Hydrogenation
  • B. Nucleophilic substitution
  • C. Electrophilic substitution
  • D. Dehydrohalogenation
Q. Which reaction is used to prepare carboxylic acids from alcohols? (2020)
  • A. Oxidation
  • B. Reduction
  • C. Hydrolysis
  • D. Dehydration
Q. Which reaction is used to prepare primary amines from alkyl halides? (2022)
  • A. Reduction
  • B. Hydrolysis
  • C. Nucleophilic substitution
  • D. Dehydrohalogenation
Q. Which reading strategy involves creating mental images?
  • A. Visualizing
  • B. Summarizing
  • C. Skimming
  • D. Scanning
Q. Which reagent can be used to convert a haloalkane into an alcohol?
  • A. Sodium hydroxide
  • B. Sodium chloride
  • C. Sodium bromide
  • D. Sodium acetate
Q. Which reagent can be used to convert a haloalkane to an alcohol?
  • A. Sodium hydroxide
  • B. Sodium metal
  • C. Hydrochloric acid
  • D. Bromine
Q. Which reagent can be used to convert an alkyl halide to an alcohol?
  • A. H2O
  • B. NaOH
  • C. KBr
  • D. HCl
Q. Which reagent can be used to convert an alkyne to a diketone?
  • A. KMnO4
  • B. O3
  • C. H2O
  • D. H2SO4
Q. Which reagent can be used to convert an alkyne to a ketone?
  • A. H2O/H2SO4
  • B. LiAlH4
  • C. B2H6
  • D. KMnO4
Q. Which reagent can be used to distinguish between an alkyne and an alkene?
  • A. Bromine water
  • B. Sodium metal
  • C. Potassium permanganate
  • D. Hydrochloric acid
Q. Which reagent can be used to test for the presence of alkenes?
  • A. Bromine water
  • B. Silver nitrate
  • C. Sodium hydroxide
  • D. Hydrochloric acid
Q. Which reagent is commonly used for the Friedel-Crafts alkylation of benzene?
  • A. AlCl3
  • B. H2SO4
  • C. NaOH
  • D. KMnO4
Q. Which reagent is commonly used for the hydrogenation of alkenes?
  • A. H2/Pt
  • B. H2O
  • C. Br2
  • D. NaOH
Q. Which reagent is commonly used for the ozonolysis of alkenes?
  • A. KMnO4
  • B. O3
  • C. H2O2
  • D. NaBH4
Q. Which reagent is commonly used in the nitration of benzene?
  • A. H2SO4
  • B. HNO3
  • C. HCl
  • D. NaOH
Q. Which reagent is commonly used to convert a carboxylic acid to an acid chloride?
  • A. SOCl2
  • B. PCl5
  • C. PCl3
  • D. All of the above
Q. Which reagent is commonly used to convert a carboxylic acid to an alcohol?
  • A. LiAlH4
  • B. NaBH4
  • C. H2/Pd
  • D. SOCl2
Q. Which reagent is commonly used to convert alcohols to alkyl halides?
  • A. SOCl2
  • B. HCl
  • C. PBr3
  • D. All of the above
Q. Which reagent is commonly used to convert alkynes to alkenes?
  • A. H2/Pd
  • B. LiAlH4
  • C. Br2
  • D. KMnO4
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