Major Competitive Exams

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Q. Which of the following processes involves a change of state without a change in temperature? (2018)
  • A. Heating
  • B. Cooling
  • C. Melting
  • D. Boiling
Q. Which of the following processes involves the conversion of mRNA into a protein? (2022)
  • A. Transcription
  • B. Translation
  • C. Replication
  • D. Translocation
Q. Which of the following processes involves the emission of a positron? (2019)
  • A. Alpha decay
  • B. Beta decay
  • C. Gamma decay
  • D. Neutron capture
Q. Which of the following processes involves the synthesis of proteins? (2022)
  • A. Replication
  • B. Transcription
  • C. Translation
  • D. Translocation
Q. Which of the following processes involves the transfer of genetic material between bacteria? (2022)
  • A. Transcription
  • B. Translation
  • C. Transformation
  • D. Transduction
Q. Which of the following processes involves the transfer of heat through a fluid? (2021)
  • A. Conduction
  • B. Convection
  • C. Radiation
  • D. Insulation
Q. Which of the following processes involves the transfer of heat through the movement of fluids? (2021)
  • A. Conduction
  • B. Convection
  • C. Radiation
  • D. Insulation
Q. Which of the following processes is adiabatic?
  • A. Heating a gas in a closed container
  • B. Compressing a gas without heat exchange
  • C. Cooling a gas at constant pressure
  • D. Evaporating water at room temperature
Q. Which of the following processes is an example of an adiabatic process?
  • A. Heating water in a kettle
  • B. Compressing a gas in a piston without heat exchange
  • C. Melting ice at room temperature
  • D. Boiling water
Q. Which of the following processes is an example of an isothermal process?
  • A. Heating a gas in a closed container
  • B. Compressing a gas without heat exchange
  • C. Melting ice at 0°C
  • D. Cooling a gas at constant pressure
Q. Which of the following processes is associated with a positive change in entropy?
  • A. Condensation of steam
  • B. Sublimation of dry ice
  • C. Freezing of water
  • D. Compression of gas
Q. Which of the following processes is associated with an increase in entropy?
  • A. Freezing of water
  • B. Condensation of steam
  • C. Sublimation of dry ice
  • D. Melting of ice
Q. Which of the following processes is characterized by constant pressure?
  • A. Isothermal
  • B. Isochoric
  • C. Isobaric
  • D. Adiabatic
Q. Which of the following processes is directly influenced by auxins? (2021)
  • A. Phototropism
  • B. Photosynthesis
  • C. Respiration
  • D. Transpiration
Q. Which of the following processes is endothermic and results in an increase in entropy?
  • A. Dissolving salt in water
  • B. Combustion of methane
  • C. Condensation of steam
  • D. Freezing of water
Q. Which of the following processes is endothermic?
  • A. Combustion of fuels
  • B. Dissolving ammonium nitrate in water
  • C. Respiration
  • D. Condensation of steam
Q. Which of the following processes is exothermic?
  • A. Melting of ice
  • B. Dissolving ammonium nitrate in water
  • C. Combustion of methane
  • D. Evaporation of water
Q. Which of the following processes is expected to have the largest increase in entropy?
  • A. Dissolving salt in water
  • B. Melting ice
  • C. Boiling water
  • D. Sublimation of solid iodine
Q. Which of the following processes is expected to have the largest positive change in entropy?
  • A. Dissolving salt in water
  • B. Condensing steam
  • C. Melting ice
  • D. Combining hydrogen and oxygen gases
Q. Which of the following processes is influenced by auxins? (2021)
  • A. Phototropism
  • B. Gravitropism
  • C. Apical dominance
  • D. All of the above
Q. Which of the following processes is irreversible and leads to an increase in entropy?
  • A. Reversible isothermal expansion
  • B. Free expansion of gas
  • C. Isothermal compression
  • D. Adiabatic expansion
Q. Which of the following processes is irreversible? (2022)
  • A. Isothermal expansion
  • B. Adiabatic expansion
  • C. Free expansion
  • D. Isobaric process
Q. Which of the following processes is isochoric? (2023)
  • A. Constant volume
  • B. Constant pressure
  • C. Constant temperature
  • D. Adiabatic
Q. Which of the following processes is isothermal for an ideal gas?
  • A. Heating at constant volume
  • B. Cooling at constant pressure
  • C. Expansion against a constant external pressure
  • D. Expansion where temperature remains constant
Q. Which of the following processes is isothermal?
  • A. Heating a gas in a closed container
  • B. Compressing a gas without heat exchange
  • C. Allowing a gas to expand slowly while maintaining constant temperature
  • D. Cooling a gas in a closed container
Q. Which of the following processes is not a thermodynamic process?
  • A. Isothermal
  • B. Adiabatic
  • C. Isochoric
  • D. Static
Q. Which of the following processes is NOT directly influenced by auxins? (2021)
  • A. Phototropism
  • B. Gravitropism
  • C. Apical dominance
  • D. Photosynthesis
Q. Which of the following processes is not governed by the First Law of Thermodynamics?
  • A. Isothermal expansion
  • B. Adiabatic compression
  • C. Isochoric heating
  • D. None of the above
Q. Which of the following processes is NOT influenced by auxins? (2021)
  • A. Phototropism
  • B. Gravitropism
  • C. Apical dominance
  • D. Fruit ripening
Q. Which of the following processes is NOT influenced by plant hormones? (2021)
  • A. Seed germination
  • B. Fruit ripening
  • C. Photosynthesis
  • D. Flowering
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