Major Competitive Exams

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Q. What type of reaction occurs when an amine reacts with a nitrous acid?
  • A. Substitution
  • B. Elimination
  • C. Decomposition
  • D. Diazotization
Q. What type of reaction occurs when chlorobenzene is treated with magnesium in dry ether? (2019)
  • A. Grignard reaction
  • B. Nucleophilic substitution
  • C. Electrophilic substitution
  • D. Reduction reaction
Q. What type of reaction occurs when chlorobenzene is treated with sodium hydroxide at high temperature?
  • A. Nucleophilic substitution
  • B. Electrophilic substitution
  • C. Elimination
  • D. Addition
Q. What type of reaction occurs when ethene is converted to ethane? (2020)
  • A. Hydrogenation
  • B. Dehydrogenation
  • C. Halogenation
  • D. Hydrolysis
Q. What type of reaction occurs when ethene reacts with bromine?
  • A. Substitution
  • B. Addition
  • C. Elimination
  • D. Oxidation
Q. What type of reaction occurs when haloalkanes react with alcoholic KOH?
  • A. Nucleophilic substitution
  • B. Elimination
  • C. Addition
  • D. Redox
Q. What type of reaction occurs when haloalkanes react with aqueous KOH?
  • A. Nucleophilic substitution
  • B. Elimination
  • C. Addition
  • D. Redox
Q. What type of reaction occurs when haloalkanes react with metals like magnesium?
  • A. Substitution
  • B. Elimination
  • C. Addition
  • D. Grignard formation
Q. What type of reaction occurs when haloalkanes react with metals like zinc?
  • A. Substitution
  • B. Elimination
  • C. Reduction
  • D. Oxidation
Q. What type of reaction occurs when haloalkanes react with nucleophiles? (2020)
  • A. Elimination
  • B. Substitution
  • C. Addition
  • D. Redox
Q. What type of reaction occurs when phenol is treated with sodium hydroxide?
  • A. Neutralization
  • B. Esterification
  • C. Saponification
  • D. Nucleophilic substitution
Q. What type of reaction occurs when phenol is treated with sodium metal?
  • A. Oxidation
  • B. Reduction
  • C. Esterification
  • D. Wurtz reaction
Q. What type of reaction occurs when phenol reacts with bromine? (2023)
  • A. Electrophilic substitution
  • B. Nucleophilic substitution
  • C. Addition
  • D. Elimination
Q. What type of reaction occurs when two amino acids form a peptide bond?
  • A. Hydrolysis
  • B. Condensation
  • C. Redox
  • D. Substitution
Q. What type of reproduction is most common in unicellular organisms? (2020)
  • A. Sexual reproduction
  • B. Asexual reproduction
  • C. Biparental reproduction
  • D. Alternation of generations
Q. What type of reproduction is primarily observed in bryophytes? (2020)
  • A. Asexual reproduction
  • B. Sexual reproduction
  • C. Both asexual and sexual reproduction
  • D. Vegetative reproduction
Q. What type of reproduction is primarily observed in ferns? (2020)
  • A. Asexual reproduction
  • B. Sexual reproduction
  • C. Vegetative reproduction
  • D. All of the above
Q. What type of reproduction is primarily observed in flowering plants? (2022)
  • A. Asexual reproduction
  • B. Vegetative propagation
  • C. Sexual reproduction
  • D. Budding
Q. What type of reproduction is primarily seen in algae? (2019)
  • A. Asexual reproduction
  • B. Sexual reproduction
  • C. Both asexual and sexual reproduction
  • D. Vegetative reproduction
Q. What type of reproduction is primarily seen in ferns? (2021)
  • A. Asexual reproduction
  • B. Sexual reproduction
  • C. Both asexual and sexual reproduction
  • D. Vegetative reproduction
Q. What type of reproduction occurs in flowering plants? (2021)
  • A. Asexual reproduction
  • B. Sexual reproduction
  • C. Both asexual and sexual
  • D. None of the above
Q. What type of reproduction occurs in hydra? (2023)
  • A. Budding
  • B. Binary fission
  • C. Fragmentation
  • D. Sexual reproduction
Q. What type of reproduction occurs in sponges? (2020)
  • A. Asexual reproduction only
  • B. Sexual reproduction only
  • C. Both asexual and sexual reproduction
  • D. None of the above
Q. What type of root system is found in monocots? (2021)
  • A. Tap root system
  • B. Fibrous root system
  • C. Adventitious root system
  • D. None of the above
Q. What type of semiconductor behavior is exhibited by a material with a very small band gap?
  • A. Insulator
  • B. Conductor
  • C. Superconductor
  • D. Semiconductor
Q. What type of semiconductor is formed by adding trivalent impurities? (2023)
  • A. N-type
  • B. P-type
  • C. Intrinsic
  • D. Superconductor
Q. What type of semiconductor is formed when silicon is doped with arsenic? (2023)
  • A. p-type
  • B. n-type
  • C. Intrinsic
  • D. Superconductor
Q. What type of semiconductor is formed when silicon is doped with phosphorus?
  • A. p-type
  • B. n-type
  • C. Intrinsic
  • D. Superconductor
Q. What type of solid is diamond classified as? (2022)
  • A. Metallic solid
  • B. Ionic solid
  • C. Covalent network solid
  • D. Molecular solid
Q. What type of solutions does Raoult's Law apply to most accurately?
  • A. Ideal solutions
  • B. Non-ideal solutions
  • C. Concentrated solutions
  • D. Dilute solutions
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