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Q. What is the unit of pressure in SI units? (2023)
  • A. Pascal
  • B. Bar
  • C. Atmosphere
  • D. Torr
Q. What is the unit of pressure in SI? (2023)
  • A. Pascal
  • B. Bar
  • C. Atmosphere
  • D. Torr
Q. What is the unit of the gas constant R in the ideal gas law? (2023)
  • A. L·atm/(K·mol)
  • B. J/(K·mol)
  • C. L·K/(mol·s)
  • D. atm/(K·mol)
Q. What is the value of the gravitational constant (G) in SI units? (2023)
  • A. 6.67 x 10^-11 N m²/kg²
  • B. 9.81 m/s²
  • C. 3.00 x 10^8 m/s
  • D. 1.60 x 10^-19 C
Q. What is the van 't Hoff factor (i) for a non-electrolyte solute? (2023)
  • A. 1
  • B. 2
  • C. 3
  • D. 0
Q. What is the van 't Hoff factor (i) for a solution of glucose (C6H12O6)? (2023)
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. What is the van 't Hoff factor (i) for a strong electrolyte like Na2SO4 in solution? (2023)
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. What is the vapor pressure of a solution containing 1 mole of solute in 10 moles of solvent, assuming ideal behavior? (2019)
  • A. 0.1 P0
  • B. 0.9 P0
  • C. 0.5 P0
  • D. 0.2 P0
Q. What is the vapor pressure of a solution containing 1 mole of solute in 9 moles of solvent, assuming ideal behavior? (2019)
  • A. 0.1 P0
  • B. 0.9 P0
  • C. 0.5 P0
  • D. 0.2 P0
Q. What is the vapor pressure of a solution containing 2 moles of solute and 3 moles of solvent, assuming ideal behavior? (2022)
  • A. 0.4 P0
  • B. 0.6 P0
  • C. 0.2 P0
  • D. 0.8 P0
Q. What is the vapor pressure of a solution containing 2 moles of solute and 4 moles of solvent compared to pure solvent? (2022)
  • A. 1/3
  • B. 1/2
  • C. 2/3
  • D. 1/4
Q. What is the vapor pressure of a solution containing 2 moles of solute and 4 moles of solvent, assuming ideal behavior? (2022)
  • A. 0.33 P0
  • B. 0.50 P0
  • C. 0.67 P0
  • D. 0.75 P0
Q. What is the voltage across a 10Ω resistor carrying a current of 2A? (2022)
  • A. 5V
  • B. 10V
  • C. 15V
  • D. 20V
Q. What is the voltage drop across a 10Ω resistor carrying a current of 2A? (2019)
  • A. 5V
  • B. 10V
  • C. 15V
  • D. 20V
Q. What is the voltage drop across a 3Ω resistor carrying a current of 4A? (2019)
  • A. 6V
  • B. 8V
  • C. 12V
  • D. 15V
Q. What is the wavelength of light emitted when an electron transitions from n=3 to n=1 in a hydrogen atom? (2020)
  • A. 102.6 nm
  • B. 656.3 nm
  • C. 486.1 nm
  • D. 434.0 nm
Q. What is the wavelength of light emitted when an electron transitions from n=4 to n=2 in a hydrogen atom? (2020)
  • A. 486 nm
  • B. 656 nm
  • C. 434 nm
  • D. 410 nm
Q. What is the wavelength of light if the first-order maximum occurs at an angle of 30° in a double-slit experiment with a slit separation of 0.1 mm and a screen distance of 1 m? (2019)
  • A. 0.5 mm
  • B. 0.3 mm
  • C. 0.2 mm
  • D. 0.1 mm
Q. What is the work done by an ideal gas during an isobaric expansion? (2019)
  • A. PΔV
  • B. ΔU
  • C. Q
  • D. 0
Q. What is the work done when a force of 15 N moves an object 3 m in the direction of the force? (2021)
  • A. 45 J
  • B. 30 J
  • C. 15 J
  • D. 60 J
Q. What is the Young's modulus of a material if a stress of 200 MPa produces a strain of 0.01? (2021)
  • A. 2000 MPa
  • B. 20 MPa
  • C. 200 MPa
  • D. 2 MPa
Q. What role does phosphorus play in plants? (2021)
  • A. Energy transfer
  • B. Water absorption
  • C. Cell wall formation
  • D. Photosynthesis
Q. What structure forms during prophase to help separate chromosomes? (2022)
  • A. Centromere
  • B. Spindle fibers
  • C. Chromatin
  • D. Nuclear envelope
Q. What structure regulates the entry and exit of substances in a cell? (2021)
  • A. Cell Wall
  • B. Nucleus
  • C. Plasma Membrane
  • D. Cytoplasm
Q. What term describes the process by which unrelated organisms evolve similar traits? (1970)
  • A. Convergent Evolution
  • B. Divergent Evolution
  • C. Adaptive Radiation
  • D. Co-evolution
Q. What term describes the role and position a species has in its environment? (2020)
  • A. Habitat
  • B. Niche
  • C. Biome
  • D. Ecosystem
Q. What term describes the role of an organism in its ecosystem? (2022)
  • A. Habitat
  • B. Niche
  • C. Biome
  • D. Community
Q. What term describes the role of an organism in its environment? (2019)
  • A. Habitat
  • B. Niche
  • C. Biome
  • D. Community
Q. What term describes the variety of life in a particular habitat or ecosystem? (2022)
  • A. Genetic diversity
  • B. Species diversity
  • C. Ecosystem diversity
  • D. Biodiversity
Q. What term describes the variety of life in the world or in a particular habitat? (2021)
  • A. Ecosystem
  • B. Biodiversity
  • C. Population
  • D. Community
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