Chemistry

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Q. Which carboxylic acid is known for its use in the food industry as a preservative? (2023)
  • A. Citric acid
  • B. Acetic acid
  • C. Lactic acid
  • D. Formic acid
Q. Which carboxylic acid is known for its use in the production of biodiesel? (2023)
  • A. Palmitic acid
  • B. Stearic acid
  • C. Oleic acid
  • D. Linoleic acid
Q. Which carboxylic acid is known for its use in the production of nylon? (2019)
  • A. Adipic acid
  • B. Citric acid
  • C. Lactic acid
  • D. Acetic acid
Q. Which carboxylic acid is responsible for the sour taste in citrus fruits? (2020)
  • A. Citric acid
  • B. Acetic acid
  • C. Lactic acid
  • D. Formic acid
Q. Which carboxylic acid is responsible for the sour taste in sour milk? (2020)
  • A. Lactic acid
  • B. Acetic acid
  • C. Citric acid
  • D. Formic acid
Q. Which carboxylic acid is used in the production of nylon? (2023)
  • A. Hexanoic acid
  • B. Adipic acid
  • C. Citric acid
  • D. Acetic acid
Q. Which compound is primarily responsible for the sour taste of vinegar? (2019)
  • A. Acetic acid
  • B. Citric acid
  • C. Lactic acid
  • D. Formic acid
Q. Which gas is evolved when an acid reacts with a carbonate? (2022)
  • A. O2
  • B. H2
  • C. CO2
  • D. N2
Q. Which haloalkane is most likely to undergo elimination reactions? (2023)
  • A. 1-bromopropane
  • B. 2-bromobutane
  • C. 3-bromobutane
  • D. Bromobenzene
Q. Which isotope of hydrogen is also known as deuterium? (2021)
  • A. Protium
  • B. Tritium
  • C. Hydrogen-1
  • D. Hydrogen-2
Q. Which isotope of hydrogen is also known as heavy hydrogen? (2020)
  • A. Protium
  • B. Deuterium
  • C. Tritium
  • D. Hydrogen-1
Q. Which of the following alcohols is most soluble in water? (2022)
  • A. 1-butanol
  • B. 2-butanol
  • C. 3-butanol
  • D. Cyclohexanol
Q. Which of the following alkali metals is most reactive with water? (2023)
  • A. Lithium
  • B. Sodium
  • C. Potassium
  • D. Rubidium
Q. Which of the following alkaline earth metals has the highest melting point? (2019)
  • A. Beryllium
  • B. Magnesium
  • C. Calcium
  • D. Strontium
Q. Which of the following alkaline earth metals is most reactive? (2020)
  • A. Beryllium
  • B. Calcium
  • C. Strontium
  • D. Barium
Q. Which of the following alkaline earth metals is the least reactive? (2022)
  • A. Barium
  • B. Calcium
  • C. Magnesium
  • D. Strontium
Q. Which of the following alkaline earth metals reacts vigorously with water? (2019)
  • A. Beryllium
  • B. Calcium
  • C. Magnesium
  • D. Strontium
Q. Which of the following amino acids is essential? (2023)
  • A. Glycine
  • B. Alanine
  • C. Leucine
  • D. Serine
Q. Which of the following best describes the behavior of gases according to the kinetic molecular theory? (2019)
  • A. Particles are tightly packed
  • B. Particles are in fixed positions
  • C. Particles are in constant random motion
  • D. Particles have strong intermolecular forces
Q. Which of the following biomolecules is primarily responsible for genetic information? (2021)
  • A. Proteins
  • B. Carbohydrates
  • C. Nucleic acids
  • D. Lipids
Q. Which of the following carboxylic acids has a pungent odor? (2022)
  • A. Acetic acid
  • B. Butanoic acid
  • C. Formic acid
  • D. Propanoic acid
Q. Which of the following carboxylic acids has the highest boiling point? (2020)
  • A. Formic acid
  • B. Acetic acid
  • C. Propanoic acid
  • D. Butanoic acid
Q. Which of the following changes will increase the yield of products in an endothermic reaction at equilibrium? (2023)
  • A. Increase temperature
  • B. Decrease pressure
  • C. Increase concentration of products
  • D. Add a catalyst
Q. Which of the following changes will shift the equilibrium to the right for the reaction: 2SO2(g) + O2(g) ⇌ 2SO3(g)? (2022)
  • A. Increase in SO2
  • B. Increase in temperature
  • C. Decrease in pressure
  • D. Increase in O2
Q. Which of the following compounds can be classified as a secondary amine? (2022)
  • A. Methylamine
  • B. Dimethylamine
  • C. Ethylamine
  • D. Aniline
Q. Which of the following compounds can be oxidized to form a ketone? (2022)
  • A. 2-Propanol
  • B. Ethanol
  • C. Methanol
  • D. Butanoic acid
Q. Which of the following compounds can be prepared by the reduction of nitrobenzene? (2022)
  • A. Aniline
  • B. Benzylamine
  • C. Ethylamine
  • D. Methylamine
Q. Which of the following compounds can be used to distinguish between primary, secondary, and tertiary amines? (2023)
  • A. Bromine water
  • B. Nitrous acid
  • C. Sodium hydroxide
  • D. Hydrochloric acid
Q. Which of the following compounds contains a carboxylic acid functional group? (2021)
  • A. C2H5OH
  • B. C3H6O
  • C. C2H4COOH
  • D. C4H10
Q. Which of the following compounds contains a coordinate bond? (2023)
  • A. NH3
  • B. H2O
  • C. CO
  • D. NaCl
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