Major Competitive Exams

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Q. Which of the following polymers is used in the manufacture of rubber? (2019)
  • A. Polyethylene
  • B. Natural rubber
  • C. Polystyrene
  • D. Polyvinyl acetate
Q. Which of the following polymers is used in the production of plastic bottles?
  • A. Polyethylene terephthalate (PET)
  • B. Polystyrene
  • C. Polyvinyl chloride (PVC)
  • D. Polypropylene
Q. Which of the following polymers is used in the production of rubber? (2019)
  • A. Polyethylene
  • B. Natural rubber
  • C. Polystyrene
  • D. Polyvinyl acetate
Q. Which of the following polymers is used in the production of synthetic rubber?
  • A. Polyvinyl chloride
  • B. Polystyrene
  • C. Polyisoprene
  • D. Polyethylene
Q. Which of the following polynomials is a perfect square?
  • A. x^2 + 4x + 4
  • B. x^2 - 4
  • C. x^2 + 2x + 3
  • D. x^2 - 2x + 1
Q. Which of the following polynomials is a quadratic polynomial?
  • A. x^3 - 2x + 1
  • B. 2x^2 + 3x - 5
  • C. 4x + 7
  • D. x^4 - x^2 + 1
Q. Which of the following practices can help conserve biodiversity? (2021)
  • A. Deforestation
  • B. Overfishing
  • C. Sustainable tourism
  • D. Pollution
Q. Which of the following practices can help in conserving biodiversity? (2021)
  • A. Monoculture farming
  • B. Deforestation
  • C. Sustainable agriculture
  • D. Urbanization
Q. Which of the following practices can help in conserving water in an ecosystem? (2022)
  • A. Overgrazing
  • B. Rainwater harvesting
  • C. Deforestation
  • D. Pollution
Q. Which of the following practices can help reduce soil erosion? (2022)
  • A. Overgrazing
  • B. Crop rotation
  • C. Deforestation
  • D. Urbanization
Q. Which of the following processes has a negative ΔG?
  • A. Melting of ice at 0°C.
  • B. Freezing of water at 0°C.
  • C. Dissolving salt in water.
  • D. Sublimation of dry ice.
Q. Which of the following processes has a positive ΔG?
  • A. Combustion of fuels
  • B. Dissolution of salts in water
  • C. Photosynthesis
  • D. Respiration
Q. Which of the following processes increases the entropy of the system? (2022)
  • A. Freezing of water
  • B. Melting of ice
  • C. Condensation of steam
  • D. Compression of gas
Q. Which of the following processes involves a change from gas to liquid?
  • A. Sublimation
  • B. Condensation
  • C. Evaporation
  • D. Freezing
Q. Which of the following processes involves a change in temperature?
  • A. Isothermal process
  • B. Adiabatic process
  • C. Isobaric process
  • D. Isochoric process
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 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 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
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