Major Competitive Exams

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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 'Pigeonhole Principle' is true?
  • A. It applies only to finite sets.
  • B. It guarantees at least one pair of identical items in a set.
  • C. It is used to prove the existence of solutions in algebra.
  • D. It is irrelevant in combinatorial problems.
Q. Which of the following statements about the area of polygons is true?
  • A. The area of a polygon can be calculated using the formula A = 1/2 * base * height.
  • B. The area of a polygon is always greater than the area of its circumscribed circle.
  • C. The area of a regular polygon can be calculated using the formula A = (1/4) * n * s^2 * cot(π/n).
  • D. The area of a polygon is independent of its shape.
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 diagonals of a polygon is true?
  • A. A polygon with n sides has n diagonals.
  • B. The number of diagonals in a polygon is given by n(n-3)/2.
  • C. All diagonals of a polygon are equal in length.
  • D. Diagonals can only be drawn in convex polygons.
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
Q. Which of the following statements about the Fibonacci sequence is true? (2023)
  • A. It starts with 0 and 1
  • B. It is an arithmetic sequence
  • C. It has a constant difference
  • D. It is a geometric sequence
Q. Which of the following statements about the graph of a quadratic function is true?
  • A. It is always a parabola that opens upwards.
  • B. It can be a straight line.
  • C. It can intersect the x-axis at three points.
  • D. It is symmetric about its vertex.
Q. Which of the following statements about the Heisenberg Uncertainty Principle is true?
  • A. It applies only to macroscopic objects
  • B. It states that position and momentum can be known exactly
  • C. It implies a limit to the precision of simultaneous measurements
  • D. It is not applicable to photons
Q. Which of the following statements about the inverse of a function is true?
  • A. The inverse of a function is always a function.
  • B. The inverse of a function is symmetric to the original function about the line y = x.
  • C. The inverse can only exist for polynomial functions.
  • D. The inverse of a function is always linear.
Q. Which of the following statements about the law of conservation of energy is true?
  • A. Energy can be created
  • B. Energy can be destroyed
  • C. Energy can be transformed
  • D. Energy is only conserved in closed systems
Q. Which of the following statements about the number 30 is true?
  • A. It is a prime number
  • B. It has exactly 4 factors
  • C. It is a multiple of 5
  • D. It is not a composite number
Q. Which of the following statements about the photoelectric effect is true?
  • A. Light intensity affects the energy of emitted electrons
  • B. Only light above a certain frequency can cause emission
  • C. Electrons are emitted regardless of light frequency
  • D. The number of emitted electrons is independent of light intensity
Q. Which of the following statements about the quantum mechanical model of the atom is true?
  • A. Electrons have fixed orbits
  • B. Electrons are found in defined paths
  • C. Electrons are described by wave functions
  • D. Electrons have no mass
Q. Which of the following statements about the Rajya Sabha is correct? (1950)
  • A. It is the upper house of the State Legislature.
  • B. It is directly elected by the people.
  • C. It represents the States and Union territories.
  • D. It has a fixed term of 5 years.
Q. Which of the following statements about the rate of reaction is true?
  • A. It increases with increasing concentration of reactants.
  • B. It decreases with increasing temperature.
  • C. It is always constant.
  • D. It is independent of the nature of reactants.
Q. Which of the following statements about the sequence defined by a_n = 3n + 1 is true? (2023)
  • A. It is an arithmetic sequence.
  • B. It is a geometric sequence.
  • C. It is a harmonic sequence.
  • D. It is a Fibonacci sequence.
Q. Which of the following statements about the series 1, 1/2, 1/4, 1/8 is true? (2023)
  • A. It is an arithmetic series.
  • B. It is a geometric series.
  • C. It diverges.
  • D. It is a constant series.
Q. Which of the following statements about the series 1, 4, 9, 16, 25 is true? (2023)
  • A. It is an arithmetic series.
  • B. It is a geometric series.
  • C. It consists of perfect squares.
  • D. It is a Fibonacci series.
Q. Which of the following statements about the solubility product (Ksp) is true?
  • A. Ksp is temperature dependent
  • B. Ksp is constant at all temperatures
  • C. Ksp only applies to soluble salts
  • D. Ksp is the same for all salts
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