Undergraduate

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Q. What is the integrating factor for the equation dy/dx + 2y = 3?
  • A. e^(2x)
  • B. e^(-2x)
  • C. e^(3x)
  • D. e^(-3x)
Q. What is the integrating factor for the equation dy/dx + 2y = 6?
  • A. e^(2x)
  • B. e^(-2x)
  • C. e^(6x)
  • D. e^(-6x)
Q. What is the ionization energy of an atom? (2023)
  • A. Energy required to remove an electron
  • B. Energy released when an electron is added
  • C. Energy required to excite an electron
  • D. Energy required to split the nucleus
Q. What is the ionization energy of hydrogen in eV? (2019)
  • A. 1.51 eV
  • B. 13.6 eV
  • C. 3.4 eV
  • D. 10.2 eV
Q. What is the IUPAC name for CH3-CH2-CH2-CHO? (2020)
  • A. Butanal
  • B. Propanal
  • C. Pentanal
  • D. Hexanal
Q. What is the IUPAC name for CH3-CH2-CH2-COOH? (2020)
  • A. Butanoic acid
  • B. Propanoic acid
  • C. Pentanoic acid
  • D. Hexanoic acid
Q. What is the IUPAC name for CH3CH2COOH? (2021)
  • A. Propanoic acid
  • B. Butanoic acid
  • C. Acetic acid
  • D. Formic acid
Q. What is the IUPAC name of CH3CH2Cl?
  • A. Chloroethane
  • B. Ethyl chloride
  • C. Ethane chloride
  • D. Chloromethane
Q. What is the IUPAC name of CH3CH2OH? (2021) 2021
  • A. Ethanol
  • B. Methanol
  • C. Propanol
  • D. Butanol
Q. What is the IUPAC name of CH3CHO? (2023) 2023
  • A. Acetaldehyde
  • B. Ethanal
  • C. Ethyl aldehyde
  • D. Methyl ketone
Q. What is the IUPAC name of the carboxylic acid with the formula C3H6O2? (2023)
  • A. Propanoic acid
  • B. Butanoic acid
  • C. Acetic acid
  • D. Formic acid
Q. What is the IUPAC name of the compound CH3CH2NH2? (2021)
  • A. Ethylamine
  • B. Dimethylamine
  • C. Propylamine
  • D. Methylamine
Q. What is the IUPAC name of the compound CH3COOH? (2020)
  • A. Methanoic acid
  • B. Ethanoic acid
  • C. Propanoic acid
  • D. Butanoic acid
Q. What is the jelly-like substance inside the cell called? (2018)
  • A. Nucleoplasm
  • B. Cytoplasm
  • C. Protoplasm
  • D. Chloroplast
Q. What is the kinetic energy of a 3 kg object moving at a speed of 4 m/s? (2022)
  • A. 24 J
  • B. 12 J
  • C. 6 J
  • D. 48 J
Q. What is the kinetic energy of a 4 kg object moving at a speed of 3 m/s? (2015)
  • A. 18 J
  • B. 12 J
  • C. 24 J
  • D. 36 J
Q. What is the Ksp expression for the salt AgCl? (2023)
  • A. [Ag+][Cl-]
  • B. [AgCl]
  • C. [Ag+][Cl-]^2
  • D. [AgCl]^2
Q. What is the Ksp of AgCl if the solubility of AgCl in water is 1.33 x 10^-5 M? (2023)
  • A. 1.78 x 10^-10
  • B. 1.33 x 10^-5
  • C. 1.33 x 10^-10
  • D. 1.78 x 10^-5
Q. What is the latent heat of fusion if 2000 J of energy is required to melt 0.5 kg of ice? (2021)
  • A. 2000 J/kg
  • B. 4000 J/kg
  • C. 1000 J/kg
  • D. 500 J/kg
Q. What is the latent heat of fusion if 2000 J of heat is required to melt 500 g of ice? (2022)
  • A. 2000 J/kg
  • B. 4000 J/kg
  • C. 1000 J/kg
  • D. 3000 J/kg
Q. What is the latent heat of fusion of ice if 80 calories are required to melt 20 grams of ice? (2020)
  • A. 40 cal/g
  • B. 60 cal/g
  • C. 80 cal/g
  • D. 100 cal/g
Q. What is the latent heat of fusion of ice if 80 g of ice at 0°C melts to water at 0°C, absorbing 3360 J of heat? (2022)
  • A. 40 J/g
  • B. 60 J/g
  • C. 80 J/g
  • D. 100 J/g
Q. What is the latent heat of vaporization if 500 g of water at 100°C is converted to steam at the same temperature, absorbing 2260 kJ of heat? (2023)
  • A. 2260 J/g
  • B. 450 J/g
  • C. 334 J/g
  • D. 1000 J/g
Q. What is the latent heat of vaporization of water if 540 J of energy is required to convert 100 g of water at 100°C to steam? (2021)
  • A. 540 J/g
  • B. 54 J/g
  • C. 5.4 J/g
  • D. 0.54 J/g
Q. What is the least count of a standard vernier caliper? (2021)
  • A. 0.01 cm
  • B. 0.1 cm
  • C. 1 cm
  • D. 0.001 cm
Q. What is the least count of a vernier caliper that can measure up to 0.01 cm? (2021)
  • A. 0.1 cm
  • B. 0.01 cm
  • C. 0.001 cm
  • D. 1 cm
Q. What is the length of a chord that is 6 cm away from the center of a circle with a radius of 10 cm? (2015)
  • A. 8 cm
  • B. 12 cm
  • C. 10 cm
  • D. 6 cm
Q. What is the length of a chord that is 6 cm from the center of a circle with a radius of 10 cm? (2019)
  • A. 8 cm
  • B. 12 cm
  • C. 10 cm
  • D. 6 cm
Q. What is the length of a diameter of a circle with a radius of 7 cm? (2022)
  • A. 14 cm
  • B. 21 cm
  • C. 7 cm
  • D. 28 cm
Q. What is the length of an arc of a circle with a radius of 10 cm and a central angle of 60 degrees? (Use π = 3.14) (2023)
  • A. 10.47 cm
  • B. 15.71 cm
  • C. 20.94 cm
  • D. 25.13 cm
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