Undergraduate

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Q. What is the primary process involved in the formation of a colloidal solution? (2022)
  • A. Evaporation
  • B. Condensation
  • C. Dispersion
  • D. Sublimation
Q. What is the primary producer in a freshwater ecosystem? (2022)
  • A. Fish
  • B. Algae
  • C. Fungi
  • D. Bacteria
Q. What is the primary producer in a terrestrial ecosystem? (2019)
  • A. Herbivores
  • B. Carnivores
  • C. Plants
  • D. Decomposers
Q. What is the primary product of nuclear fission? (2019)
  • A. Energy
  • B. Neutrons
  • C. Protons
  • D. Alpha particles
Q. What is the primary product of the electrolysis of water? (2023)
  • A. Hydrogen
  • B. Oxygen
  • C. Hydrogen Peroxide
  • D. Ozone
Q. What is the primary product of the fission of Uranium-235? (2019)
  • A. Helium
  • B. Neutrons
  • C. Barium and Krypton
  • D. Carbon
Q. What is the primary product of the fusion of hydrogen nuclei in stars? (2022)
  • A. Helium
  • B. Carbon
  • C. Oxygen
  • D. Nitrogen
Q. What is the primary product of the fusion of hydrogen nuclei? (2022)
  • A. Helium
  • B. Carbon
  • C. Oxygen
  • D. Deuterium
Q. What is the primary product of the reaction between hydrogen and chlorine? (2019)
  • A. Hydrochloric acid
  • B. Hydrogen chloride
  • C. Chlorine gas
  • D. Water
Q. What is the primary product of the thermal decomposition of calcium carbonate? (2019)
  • A. Calcium oxide
  • B. Calcium hydroxide
  • C. Calcium bicarbonate
  • D. Calcium chloride
Q. What is the primary product when aluminum reacts with hydrochloric acid? (2020)
  • A. AlCl3
  • B. H2
  • C. Al(OH)3
  • D. Al2Cl6
Q. What is the primary product when calcium reacts with oxygen? (2022)
  • A. Calcium oxide
  • B. Calcium hydroxide
  • C. Calcium carbonate
  • D. Calcium peroxide
Q. What is the primary product when lithium reacts with nitrogen? (2022)
  • A. Lithium nitride
  • B. Lithium oxide
  • C. Lithium hydroxide
  • D. Lithium carbonate
Q. What is the primary product when potassium permanganate (KMnO4) is reduced in acidic medium? (2019)
  • A. MnO2
  • B. Mn2+
  • C. MnO4-
  • D. KMnO4
Q. What is the primary purpose of petals in a flower? (2023)
  • A. To produce seeds
  • B. To attract pollinators
  • C. To support the flower
  • D. To protect the ovary
Q. What is the primary purpose of reproduction in organisms? (2020)
  • A. To increase genetic diversity
  • B. To maintain homeostasis
  • C. To produce energy
  • D. To ensure survival of the species
Q. What is the primary purpose of reproductive health education? (2020)
  • A. To promote early marriage
  • B. To prevent sexually transmitted diseases
  • C. To encourage multiple partners
  • D. To discourage family planning
Q. What is the primary purpose of using recombinant DNA technology in medicine? (2019)
  • A. To create vaccines
  • B. To produce antibiotics
  • C. To synthesize hormones
  • D. All of the above
Q. What is the primary purpose of using restriction enzymes in biotechnology? (2020)
  • A. To amplify DNA
  • B. To cut DNA at specific sequences
  • C. To insert genes into plasmids
  • D. To sequence DNA
Q. What is the primary reason for the brittleness of certain materials? (2023)
  • A. High ductility
  • B. Low atomic bonding energy
  • C. High atomic bonding energy
  • D. High elasticity
Q. What is the primary reason for the high compressibility of gases?
  • A. Large intermolecular spaces
  • B. Strong intermolecular forces
  • C. Low temperature
  • D. High pressure
Q. What is the primary reason for the high electronegativity of halogens? (2020)
  • A. Large atomic size
  • B. High ionization energy
  • C. Low electron affinity
  • D. High atomic mass
Q. What is the primary reason for the increase in human population over the last century? (2023)
  • A. Increased birth rates
  • B. Decreased death rates
  • C. Improved healthcare
  • D. All of the above
Q. What is the primary reason for the increase in ionization energy across a period in p-block elements? (2023)
  • A. Increase in atomic size
  • B. Increase in nuclear charge
  • C. Decrease in shielding effect
  • D. Increase in electron affinity
Q. What is the primary reason for the phenomenon of plastic deformation in materials? (2023)
  • A. Elastic limit
  • B. Yield strength
  • C. Ultimate tensile strength
  • D. Ductility
Q. What is the primary reason for the stability of a nucleus? (2022)
  • A. Number of protons
  • B. Number of neutrons
  • C. Ratio of neutrons to protons
  • D. Size of the nucleus
Q. What is the primary reason for the use of soft iron in electromagnets? (2023)
  • A. High electrical conductivity
  • B. Low cost
  • C. High magnetic permeability
  • D. Low density
Q. What is the primary reason for the variable oxidation states of transition metals?
  • A. Presence of d-electrons
  • B. High atomic mass
  • C. Low ionization energy
  • D. High electronegativity
Q. What is the primary reason that gases can be compressed more than liquids or solids?
  • A. High density
  • B. Low density
  • C. Large intermolecular spaces
  • D. Strong intermolecular forces
Q. What is the primary role of auxins in apical dominance? (2019)
  • A. Promote lateral bud growth
  • B. Inhibit lateral bud growth
  • C. Stimulate root growth
  • D. Enhance leaf expansion
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