Major Competitive Exams

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Q. Which of the following is a biotechnological application in environmental management? (2022)
  • A. Bioremediation
  • B. Gene therapy
  • C. Cloning
  • D. Transgenic animals
Q. Which of the following is a biotechnological application in medicine? (2019)
  • A. Gene therapy
  • B. Bioremediation
  • C. Biofuels
  • D. Plant breeding
Q. Which of the following is a biotechnological method for waste management? (2022)
  • A. Bioremediation
  • B. Cloning
  • C. PCR
  • D. Gene editing
Q. Which of the following is a biotechnological method used for the production of vaccines? (2021)
  • A. Fermentation
  • B. Cloning
  • C. Gene therapy
  • D. DNA sequencing
Q. Which of the following is a biotic component of an ecosystem? (2021)
  • A. Soil
  • B. Water
  • C. Plants
  • D. Air
Q. Which of the following is a biotic factor in an ecosystem? (2020)
  • A. Temperature
  • B. Soil pH
  • C. Plants
  • D. Water availability
Q. Which of the following is a branched alkane?
  • A. Pentane
  • B. Isopentane
  • C. Hexane
  • D. Heptane
Q. Which of the following is a branched-chain alkane?
  • A. Pentane
  • B. 2-Methylbutane
  • C. Hexane
  • D. Heptane
Q. Which of the following is a carbohydrate?
  • A. Glucose
  • B. Amino acid
  • C. Fatty acid
  • D. Nucleotide
Q. Which of the following is a carbohydrate? (2023) 2023
  • A. Glucose
  • B. Amino acid
  • C. Fatty acid
  • D. Nucleotide
Q. Which of the following is a carboxylic acid?
  • A. C2H5OH
  • B. C3H6O
  • C. C2H4O2
  • D. C3H8
Q. Which of the following is a characteristic feature of alkanes?
  • A. They contain at least one double bond
  • B. They are saturated hydrocarbons
  • C. They have a cyclic structure
  • D. They contain functional groups
Q. Which of the following is a characteristic feature of all living organisms? (2019)
  • A. Ability to move
  • B. Ability to reproduce
  • C. Ability to respond to stimuli
  • D. Ability to photosynthesize
Q. Which of the following is a characteristic feature of cycloalkanes?
  • A. They are always aromatic
  • B. They contain a ring structure
  • C. They have double bonds
  • D. They are always gaseous at room temperature
Q. Which of the following is a characteristic feature of echinoderms? (2021)
  • A. Bilateral symmetry
  • B. Water vascular system
  • C. Exoskeleton made of chitin
  • D. Presence of feathers
Q. Which of the following is a characteristic feature of epithelial tissue? (2020)
  • A. Highly vascularized
  • B. Cells are tightly packed
  • C. Presence of a matrix
  • D. Ability to contract
Q. Which of the following is a characteristic feature of fungi? (2021)
  • A. Photosynthesis
  • B. Chitin in cell walls
  • C. Multicellular only
  • D. Autotrophic nutrition
Q. Which of the following is a characteristic feature of living organisms? (2019)
  • A. Ability to move
  • B. Ability to grow
  • C. Ability to respond to stimuli
  • D. All of the above
Q. Which of the following is a characteristic feature of phylum Arthropoda? (2020)
  • A. Presence of a notochord
  • B. Body divided into segments
  • C. Presence of a true coelom
  • D. Radial symmetry
Q. Which of the following is a characteristic feature of Romanesque architecture?
  • A. Large stained glass windows
  • B. Thick walls and small windows
  • C. Pointed arches
  • D. Elaborate ornamentation
Q. Which of the following is a characteristic feature of the kingdom Plantae? (2021)
  • A. Heterotrophic nutrition
  • B. Photosynthesis
  • C. Unicellular organisms
  • D. Motility
Q. Which of the following is a characteristic feature of viruses? (2020)
  • A. Cellular structure
  • B. Metabolism
  • C. Reproduction without a host
  • D. Protein coat
Q. Which of the following is a characteristic of +M effect?
  • A. Electron withdrawal
  • B. Electron donation
  • C. No effect
  • D. Increased acidity
Q. Which of the following is a characteristic of a base?
  • A. Sour taste
  • B. Bitter taste
  • C. Turns litmus red
  • D. Reacts with metals to produce hydrogen
Q. Which of the following is a characteristic of a black body?
  • A. Reflects all radiation
  • B. Absorbs all radiation
  • C. Transmits all radiation
  • D. Scatters all radiation
Q. Which of the following is a characteristic of a buffer solution?
  • A. It changes pH drastically with small amounts of acid or base
  • B. It resists changes in pH
  • C. It has a pH of 7
  • D. It can only be made from strong acids and bases
Q. Which of the following is a characteristic of a catalyst?
  • A. It is consumed in the reaction
  • B. It increases the activation energy
  • C. It lowers the activation energy
  • D. It changes the equilibrium constant
Q. Which of the following is a characteristic of a crystalline solid compared to a liquid?
  • A. Definite melting point
  • B. Fluidity
  • C. High compressibility
  • D. Random arrangement of particles
Q. Which of the following is a characteristic of a diode? (2023)
  • A. Allows current to flow in both directions
  • B. Allows current to flow in one direction
  • C. Has no resistance
  • D. Is a superconductor
Q. Which of the following is a characteristic of a first-order reaction?
  • A. Rate is proportional to the square of the concentration
  • B. Rate is independent of concentration
  • C. Rate is directly proportional to concentration
  • D. Rate is inversely proportional to concentration
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