Undergraduate

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Q. What is the minimum energy required to remove an electron from a metal surface with a work function of 2 eV? (2021)
  • A. 1 eV
  • B. 2 eV
  • C. 3 eV
  • D. 4 eV
Q. What is the minimum thickness of a soap bubble for which the first order of constructive interference occurs for light of wavelength λ? (2019)
  • A. λ/4
  • B. λ/2
  • C. λ
  • D. 3λ/4
Q. What is the minimum value of f(x) = 3x^2 - 12x + 12? (2021)
  • A. 0
  • B. 3
  • C. 6
  • D. 9
Q. What is the minimum value of f(x) = 3x^2 - 12x + 7? (2022)
  • A. -5
  • B. -4
  • C. -3
  • D. -2
Q. What is the minimum value of f(x) = 3x^2 - 12x + 9? (2022)
  • A. 0
  • B. 1
  • C. 2
  • D. 3
Q. What is the minimum value of f(x) = x^2 - 4x + 5? (2020)
  • A. 1
  • B. 2
  • C. 3
  • D. 4
Q. What is the minimum value of f(x) = x^2 - 4x + 6? (2022)
  • A. 2
  • B. 3
  • C. 4
  • D. 5
Q. What is the minimum value of f(x) = x^2 - 4x + 7? (2023)
  • A. 3
  • B. 5
  • C. 4
  • D. 6
Q. What is the minimum value of f(x) = x^2 - 6x + 10? (2020)
  • A. 4
  • B. 6
  • C. 10
  • D. 8
Q. What is the minimum value of the function f(x) = 4x^2 - 16x + 20? (2021)
  • A. 4
  • B. 5
  • C. 6
  • D. 3
Q. What is the minimum value of the function f(x) = 4x^2 - 16x + 20? (2021) 2021
  • A. 4
  • B. 5
  • C. 6
  • D. 3
Q. What is the modulus of the complex number 3 + 4i? (2023)
  • A. 5
  • B. 7
  • C. 1
  • D. 4
Q. What is the molality of a solution made by dissolving 10 moles of solute in 5 kg of solvent? (2022)
  • A. 2 m
  • B. 1 m
  • C. 0.5 m
  • D. 3 m
Q. What is the molar mass of water (H2O)? (2023) 2023
  • A. 16 g/mol
  • B. 18 g/mol
  • C. 20 g/mol
  • D. 22 g/mol
Q. What is the molarity of a solution containing 5 moles of solute in 2 liters of solution? (2021) 2021
  • A. 2.5 M
  • B. 5 M
  • C. 10 M
  • D. 1 M
Q. What is the molarity of a solution containing 58.5 g of NaCl in 1 liter of solution? (2021)
  • A. 1 M
  • B. 0.5 M
  • C. 2 M
  • D. 0.1 M
Q. What is the molarity of a solution prepared by dissolving 5 grams of NaCl in enough water to make 250 mL of solution? (Molar mass of NaCl = 58.5 g/mol) (2023)
  • A. 0.34 M
  • B. 0.42 M
  • C. 0.25 M
  • D. 0.50 M
Q. What is the molecular formula of Benzoic acid?
  • A. C6H5COOH
  • B. C7H6O2
  • C. C6H6O
  • D. C6H4O2
Q. What is the molecular formula of butan-2-one?
  • A. C4H8O
  • B. C4H10O
  • C. C4H6O
  • D. C4H12O
Q. What is the molecular formula of butanoic acid?
  • A. C3H6O2
  • B. C4H8O2
  • C. C5H10O2
  • D. C6H12O2
Q. What is the molecular formula of cyclohexane? (2022)
  • A. C6H12
  • B. C6H10
  • C. C6H14
  • D. C6H6
Q. What is the molecular formula of ethyne? (2022)
  • A. C2H2
  • B. C2H4
  • C. C2H6
  • D. C3H4
Q. What is the molecular formula of formaldehyde?
  • A. C2H4O
  • B. CH2O
  • C. C3H6O
  • D. C4H8O
Q. What is the molecular formula of glucose? (2022)
  • A. C6H12O6
  • B. C5H10O5
  • C. C6H10O5
  • D. C6H14O6
Q. What is the molecular formula of glucose? (2022) 2022
  • A. C6H12O6
  • B. C5H10O5
  • C. C6H10O5
  • D. C6H14O6
Q. What is the molecular formula of the simplest alkyne? (2022)
  • A. C2H2
  • B. C2H4
  • C. C3H4
  • D. C3H6
Q. What is the momentum of a 3 kg object moving at a velocity of 4 m/s? (2017)
  • A. 12 kg·m/s
  • B. 7 kg·m/s
  • C. 15 kg·m/s
  • D. 10 kg·m/s
Q. What is the monomer of nucleic acids? (2023)
  • A. Amino acid
  • B. Nucleotide
  • C. Monosaccharide
  • D. Fatty acid
Q. What is the monomer of polyethylene?
  • A. Ethylene
  • B. Propylene
  • C. Butylene
  • D. Styrene
Q. What is the monomer of polystyrene?
  • A. Ethylene
  • B. Styrene
  • C. Propylene
  • D. Vinyl chloride
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