Major Competitive Exams

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Q. Which of the following is a characteristic of gases?
  • A. Definite shape
  • B. Definite volume
  • C. Compressibility
  • D. Incompressibility
Q. Which of the following is a characteristic of genetically modified organisms (GMOs)? (2023)
  • A. They are always harmful to the environment
  • B. They contain genes from other species
  • C. They cannot reproduce
  • D. They are not regulated by any laws
Q. Which of the following is a characteristic of geometric isomers?
  • A. Different connectivity of atoms
  • B. Different spatial arrangement
  • C. Different molecular formulas
  • D. Different functional groups
Q. Which of the following is a characteristic of gibberellins? (2019)
  • A. Inhibition of seed germination
  • B. Promotion of flowering
  • C. Stimulation of leaf senescence
  • D. Inhibition of stem elongation
Q. Which of the following is a characteristic of harmonic progression?
  • A. The terms are always increasing.
  • B. The terms can be expressed as fractions.
  • C. The terms are always integers.
  • D. The common ratio is constant.
Q. Which of the following is a characteristic of harmonic progressions?
  • A. They can only contain positive numbers.
  • B. They can be represented graphically as a straight line.
  • C. The difference between consecutive terms is constant.
  • D. The sum of the first n terms can be calculated easily.
Q. Which of the following is a characteristic of hydrogen bonding?
  • A. Occurs between two hydrogen atoms
  • B. Involves a hydrogen atom bonded to a highly electronegative atom
  • C. Is stronger than covalent bonds
  • D. Is a type of ionic bond
Q. Which of the following is a characteristic of hydrogen bonds?
  • A. They are stronger than covalent bonds
  • B. They occur between hydrogen and electronegative atoms
  • C. They are permanent
  • D. They are ionic
Q. Which of the following is a characteristic of hydrogen gas?
  • A. It is colorless
  • B. It is heavier than air
  • C. It is non-flammable
  • D. It is a good conductor of electricity
Q. Which of the following is a characteristic of intrinsic semiconductors?
  • A. High conductivity
  • B. Temperature-dependent conductivity
  • C. Presence of impurities
  • D. Permanent charge carriers
Q. Which of the following is a characteristic of ionic compounds?
  • A. High volatility
  • B. High melting points
  • C. Poor solubility in water
  • D. Good electrical conductivity in solid state
Q. Which of the following is a characteristic of ionic solids? (2020)
  • A. High electrical conductivity in solid state
  • B. High melting point
  • C. Low density
  • D. Malleable
Q. Which of the following is a characteristic of irrational numbers?
  • A. They can be expressed as a fraction.
  • B. They have a non-repeating, non-terminating decimal expansion.
  • C. They are always positive.
  • D. They can be represented on a number line as whole numbers.
Q. Which of the following is a characteristic of isomers? (2022)
  • A. Same molecular formula
  • B. Different molecular formula
  • C. Same physical properties
  • D. Same structural formula
Q. Which of the following is a characteristic of isotopes?
  • A. Same number of protons, different number of neutrons
  • B. Different number of protons, same number of neutrons
  • C. Same mass number
  • D. Different chemical properties
Q. Which of the following is a characteristic of life? (2022)
  • A. Ability to evolve
  • B. Ability to freeze
  • C. Ability to dissolve
  • D. Ability to float
Q. Which of the following is a characteristic of linearly polarized light?
  • A. It vibrates in all directions
  • B. It vibrates in a single plane
  • C. It has a constant frequency
  • D. It travels faster than unpolarized light
Q. Which of the following is a characteristic of lipids?
  • A. Soluble in water
  • B. Insoluble in water
  • C. Made of amino acids
  • D. Formed by nucleotides
Q. Which of the following is a characteristic of living organisms? (2022)
  • A. They can exist in isolation
  • B. They can evolve
  • C. They do not require energy
  • D. They cannot adapt
Q. Which of the following is a characteristic of meristematic tissue? (2022)
  • A. It is differentiated
  • B. It has the ability to divide
  • C. It is dead
  • D. It is found in mature tissues
Q. Which of the following is a characteristic of multilayer adsorption? (2019)
  • A. Occurs at low pressures only
  • B. Described by the Langmuir isotherm
  • C. Described by the BET theory
  • D. Involves only physical adsorption
Q. Which of the following is a characteristic of noble gases?
  • A. High reactivity
  • B. Low ionization energy
  • C. Complete valence shell
  • D. Forming cations easily
Q. Which of the following is a characteristic of noble metals? (2019)
  • A. Highly reactive
  • B. Corrosion resistant
  • C. Low melting points
  • D. Brittle
Q. Which of the following is a characteristic of non-Newtonian fluids?
  • A. Constant viscosity
  • B. Viscosity changes with shear rate
  • C. Incompressible
  • D. High surface tension
Q. Which of the following is a characteristic of nuclear fusion? (2023)
  • A. Releases energy
  • B. Requires high temperature
  • C. Occurs in stars
  • D. All of the above
Q. Which of the following is a characteristic of nuclear reactions compared to chemical reactions? (2023)
  • A. Involves electrons
  • B. Involves large energy changes
  • C. Involves only valence electrons
  • D. Involves breaking of chemical bonds
Q. Which of the following is a characteristic of numbers divisible by 7?
  • A. They end in 0 or 5
  • B. The double of the last digit subtracted from the rest of the number is divisible by 7
  • C. They are always even
  • D. They are always prime
Q. Which of the following is a characteristic of optical isomers?
  • A. They have the same physical properties
  • B. They rotate plane-polarized light in opposite directions
  • C. They have different molecular weights
  • D. They cannot be superimposed on each other
Q. Which of the following is a characteristic of organic compounds? (2021)
  • A. They contain carbon
  • B. They are always solid
  • C. They are ionic
  • D. They do not burn
Q. Which of the following is a characteristic of overdamped systems?
  • A. They oscillate slowly
  • B. They return to equilibrium slowly without oscillating
  • C. They oscillate rapidly
  • D. They have maximum amplitude
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