Chemistry (School & UG)

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Q. Which reaction mechanism is involved in the conversion of an alcohol to an alkyl halide?
  • A. SN1
  • B. SN2
  • C. E1
  • D. E2
Q. Which reaction mechanism is involved in the hydration of alkenes?
  • A. Electrophilic addition
  • B. Nucleophilic substitution
  • C. Free radical substitution
  • D. Elimination
Q. Which reaction mechanism is primarily involved in the addition of H2 across an alkene?
  • A. Electrophilic addition
  • B. Nucleophilic substitution
  • C. Radical substitution
  • D. Elimination
Q. Which reaction mechanism is primarily involved in the addition of HBr to an alkene?
  • A. Electrophilic addition
  • B. Nucleophilic substitution
  • C. Radical substitution
  • D. Elimination
Q. Which reaction mechanism is primarily involved in the addition of HBr to propene?
  • A. Electrophilic addition
  • B. Nucleophilic substitution
  • C. Radical substitution
  • D. Elimination
Q. Which reaction mechanism is primarily involved in the nucleophilic substitution of alkyl halides?
  • A. SN1
  • B. SN2
  • C. E1
  • D. E2
Q. Which reagent is commonly used in the qualitative analysis of halides to form a precipitate?
  • A. Barium chloride
  • B. Silver nitrate
  • C. Lead(II) nitrate
  • D. Calcium sulfate
Q. Which reagent is commonly used to confirm the presence of chloride ions in a solution?
  • A. Barium nitrate
  • B. Silver nitrate
  • C. Calcium hydroxide
  • D. Sodium sulfate
Q. Which reagent is commonly used to confirm the presence of sulfate ions in a qualitative analysis?
  • A. Barium chloride
  • B. Silver nitrate
  • C. Hydrochloric acid
  • D. Ammonium hydroxide
Q. Which reagent is commonly used to reduce aldehydes to alcohols?
  • A. LiAlH4
  • B. KMnO4
  • C. NaBH4
  • D. H2SO4
Q. Which salt is commonly used as a de-icing agent on roads?
  • A. Sodium chloride
  • B. Potassium nitrate
  • C. Calcium sulfate
  • D. Magnesium sulfate
Q. Which spectroscopic technique is best suited for identifying functional groups in organic compounds?
  • A. Nuclear Magnetic Resonance (NMR)
  • B. Infrared (IR) Spectroscopy
  • C. Ultraviolet-Visible (UV-Vis) Spectroscopy
  • D. Mass Spectrometry
Q. Which spectroscopic technique is commonly used to identify metal ions in a sample?
  • A. Infrared Spectroscopy
  • B. Nuclear Magnetic Resonance
  • C. Atomic Absorption Spectroscopy
  • D. Mass Spectrometry
Q. Which spectroscopic technique is most effective for identifying functional groups in organic compounds?
  • A. NMR
  • B. UV-Vis
  • C. IR
  • D. Mass Spectrometry
Q. Which spectroscopy technique is best suited for identifying functional groups in organic ions?
  • A. Infrared Spectroscopy
  • B. Ultraviolet-Visible Spectroscopy
  • C. Nuclear Magnetic Resonance
  • D. Raman Spectroscopy
Q. Which spectroscopy technique is best suited for identifying functional groups in organic compounds?
  • A. Infrared Spectroscopy
  • B. Nuclear Magnetic Resonance
  • C. Mass Spectrometry
  • D. Raman Spectroscopy
Q. Which spectroscopy technique is most suitable for identifying functional groups in organic compounds?
  • A. UV-Vis Spectroscopy
  • B. NMR Spectroscopy
  • C. Mass Spectrometry
  • D. Infrared Spectroscopy
Q. Which substituent on a benzene ring is a deactivating group for electrophilic substitution?
  • A. Methyl
  • B. Methoxy
  • C. Nitro
  • D. Amino
Q. Which substituent on a benzene ring is a strong deactivator and meta-director in electrophilic substitution?
  • A. Hydroxyl group (-OH)
  • B. Methyl group (-CH3)
  • C. Nitro group (-NO2)
  • D. Ethyl group (-C2H5)
Q. Which substituent on a benzene ring is a strong deactivator and meta-director?
  • A. Methyl
  • B. Nitro
  • C. Hydroxyl
  • D. Ethyl
Q. Which substituent on a benzene ring is considered an electron-donating group?
  • A. Nitro group
  • B. Hydroxyl group
  • C. Carboxylic acid
  • D. Halogen
Q. Which technique is best suited for separating and identifying amino acids in a mixture?
  • A. Gas chromatography
  • B. High-performance liquid chromatography
  • C. Thin-layer chromatography
  • D. Capillary electrophoresis
Q. Which technique is best suited for separating anions in a mixture?
  • A. Gas chromatography
  • B. High-performance liquid chromatography
  • C. Capillary electrophoresis
  • D. Mass spectrometry
Q. Which technique is best suited for the separation of charged biomolecules based on their size?
  • A. Gas chromatography
  • B. Capillary electrophoresis
  • C. High-performance liquid chromatography
  • D. Thin-layer chromatography
Q. Which technique is best suited for the separation of charged biomolecules?
  • A. Gas chromatography
  • B. High-performance liquid chromatography
  • C. Capillary electrophoresis
  • D. Thin-layer chromatography
Q. Which technique is best suited for the separation of charged particles in a solution?
  • A. Titration
  • B. Chromatography
  • C. Electrophoresis
  • D. Spectroscopy
Q. Which technique is commonly used for the qualitative analysis of anions?
  • A. Gas Chromatography
  • B. Thin Layer Chromatography
  • C. Ion Chromatography
  • D. High-Performance Liquid Chromatography
Q. Which technique is commonly used to separate and identify anions in a mixture?
  • A. Gas chromatography
  • B. High-performance liquid chromatography
  • C. Ion chromatography
  • D. Capillary electrophoresis
Q. Which technique is commonly used to separate anions in qualitative analysis?
  • A. Gas chromatography
  • B. Thin-layer chromatography
  • C. Capillary electrophoresis
  • D. High-performance liquid chromatography
Q. Which technique is most effective for the qualitative analysis of anions in a sample?
  • A. Thin Layer Chromatography
  • B. Ion Chromatography
  • C. Gas Chromatography
  • D. Capillary Electrophoresis
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