Major Competitive Exams

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Q. Which of the following statements about optical isomers is true?
  • A. They have the same physical properties
  • B. They rotate plane-polarized light in opposite directions
  • C. They have different molecular formulas
  • D. They are always chiral
Q. Which of the following statements about parthenogenesis is true? (2020)
  • A. It involves fertilization
  • B. It is a form of sexual reproduction
  • C. It produces offspring from unfertilized eggs
  • D. It is common in mammals
Q. Which of the following statements about partnerships is true?
  • A. All partners must have equal say in decisions
  • B. Partnerships are always limited liability
  • C. Partners can be held personally liable for business debts
  • D. Partnerships cannot have more than two partners
Q. Which of the following statements about phenols is true?
  • A. They are weak acids.
  • B. They are strong bases.
  • C. They do not react with bromine.
  • D. They are insoluble in water.
Q. Which of the following statements about plasma is true? (2023)
  • A. It has a definite shape and volume
  • B. It is a good conductor of electricity
  • C. It has low energy
  • D. It is the most common state of matter in the universe
Q. Which of the following statements about polarized light is true?
  • A. It can pass through any material without obstruction
  • B. It vibrates in multiple planes
  • C. It vibrates in a single plane
  • D. It has a higher speed than unpolarized light
Q. Which of the following statements about power is true?
  • A. Power is always conserved
  • B. Power can be negative
  • C. Power is independent of time
  • D. Power is a scalar quantity
Q. Which of the following statements about prime numbers is true?
  • A. Every even number greater than 2 is prime.
  • B. Prime numbers can only be divided by 1 and themselves.
  • C. The number 1 is considered a prime number.
  • D. There are infinitely many even prime numbers.
Q. Which of the following statements about respiration in plants is true? (2022)
  • A. It occurs only at night
  • B. It is independent of photosynthesis
  • C. It produces more energy than fermentation
  • D. It only occurs in leaves
Q. Which of the following statements about RMS speed is true?
  • A. RMS speed is always greater than average speed
  • B. RMS speed is always less than average speed
  • C. RMS speed equals average speed
  • D. RMS speed is independent of molecular mass
Q. Which of the following statements about solids is true?
  • A. They have a definite shape and volume
  • B. They flow easily
  • C. They have low density
  • D. They are incompressible
Q. Which of the following statements about solutions is incorrect?
  • A. Solutes lower the vapor pressure of solvents.
  • B. Colligative properties depend on the type of solute.
  • C. Boiling point elevation is a colligative property.
  • D. Freezing point depression is a colligative property.
Q. Which of the following statements about solutions is true? (2023)
  • A. Solutes increase the boiling point of solvents
  • B. Solutes decrease the freezing point of solvents
  • C. Both A and B
  • D. Neither A nor B
Q. Which of the following statements about sound waves is true?
  • A. Sound waves can travel through a vacuum
  • B. Sound waves are longitudinal waves
  • C. Sound waves travel faster in air than in water
  • D. Sound waves are electromagnetic waves
Q. Which of the following statements about strong acids is true?
  • A. They partially dissociate in solution
  • B. They completely dissociate in solution
  • C. They have high pKa values
  • D. They do not conduct electricity
Q. Which of the following statements about surface tension is true?
  • A. It increases with temperature
  • B. It is independent of temperature
  • C. It decreases with temperature
  • D. It is only present in liquids
Q. Which of the following statements about team formation is most accurate?
  • A. Teams should always consist of individuals with similar backgrounds.
  • B. Diversity in teams can lead to more innovative solutions.
  • C. Team formation is only important in competitive environments.
  • D. All team members should have the same level of expertise.
Q. Which of the following statements about team leadership is most accurate?
  • A. Leaders should dominate discussions.
  • B. Leaders must be flexible and adaptive.
  • C. Leaders should avoid making decisions.
  • D. Leaders are not important in team success.
Q. Which of the following statements about the Arrhenius equation is true?
  • A. It relates temperature to the rate constant
  • B. It is only applicable to zero-order reactions
  • C. It does not consider activation energy
  • D. It is a linear equation
Q. Which of the following statements about the Bohr model of the atom is correct?
  • A. Electrons can exist in any orbit
  • B. Electrons emit radiation in stable orbits
  • C. Energy levels are quantized
  • D. All orbits are elliptical
Q. Which of the following statements about the Bohr model of the hydrogen atom is correct?
  • A. Electrons can exist in any orbit
  • B. Only certain orbits are allowed
  • C. Electrons radiate energy continuously
  • D. The nucleus is positively charged
Q. Which of the following statements about the boiling point of a liquid is correct?
  • A. It is the temperature at which vapor pressure equals atmospheric pressure
  • B. It is always higher than the melting point
  • C. It is independent of atmospheric pressure
  • D. It decreases with increasing molecular weight
Q. Which of the following statements about the common ion effect is true?
  • A. It increases solubility
  • B. It decreases solubility
  • C. It has no effect on solubility
  • D. It only applies to strong electrolytes
Q. Which of the following statements about the conservation of energy is true?
  • A. Energy can be created
  • B. Energy can be destroyed
  • C. Energy can be transformed
  • D. Energy is always lost
Q. Which of the following statements about the conservation of momentum is true?
  • A. Momentum is always conserved in all collisions
  • B. Momentum is conserved only in elastic collisions
  • C. Momentum is conserved only in inelastic collisions
  • D. Momentum is not conserved in any collision
Q. Which of the following statements about the data trends in the mixed graph is correct? (2023)
  • A. All variables show a linear trend.
  • B. Some variables exhibit non-linear trends.
  • C. There are no trends visible in the data.
  • D. The trends are only visible in the long-term data.
Q. Which of the following statements about the decimal system is incorrect? (2023)
  • A. It is a base 10 system.
  • B. It uses digits from 0 to 9.
  • C. It is the only system used in mathematics.
  • D. It is widely used in everyday life.
Q. Which of the following statements about the diagonals of a polygon is correct?
  • A. A triangle has no diagonals.
  • B. A quadrilateral has two diagonals.
  • C. A pentagon has five diagonals.
  • D. A hexagon has nine diagonals.
Q. Which of the following statements about the electron configuration of an atom is correct?
  • A. Electrons fill orbitals in order of increasing energy
  • B. Electrons can occupy the same orbital without restriction
  • C. The 4s orbital is filled before the 3d orbital
  • D. All of the above
Q. Which of the following statements about the equilibrium constant (K) is true?
  • A. K changes with temperature
  • B. K changes with concentration
  • C. K is always greater than 1
  • D. K is independent of pressure
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