Major Competitive Exams

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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 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
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 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, 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
Q. Which of the following statements about the uncertainty principle is true?
  • A. It applies only to macroscopic objects
  • B. It states that position and momentum cannot be known simultaneously
  • C. It is a classical physics concept
  • D. It can be ignored in quantum mechanics
Q. Which of the following statements about the union of two sets is true?
  • A. The union includes only the elements that are common to both sets.
  • B. The union includes all elements from both sets, excluding duplicates.
  • C. The union is only applicable to finite sets.
  • D. The union can never be larger than the largest set.
Q. Which of the following statements about the viscosity of liquids is true?
  • A. Viscosity increases with temperature
  • B. Viscosity decreases with temperature
  • C. Viscosity is independent of temperature
  • D. Viscosity is the same for all liquids
Q. Which of the following statements about thermal conductivity is true? (2021)
  • A. It is higher in gases than in solids
  • B. It is a measure of a material's ability to conduct heat
  • C. It increases with temperature
  • D. It is independent of material type
Q. Which of the following statements about torque is true?
  • A. Torque is a scalar quantity.
  • B. Torque depends on the angle of application.
  • C. Torque is always positive.
  • D. Torque does not depend on the point of rotation.
Q. Which of the following statements about total internal reflection is true?
  • A. It can occur at any angle of incidence
  • B. It requires a denser medium to be on the incident side
  • C. It can occur when light travels from air to water
  • D. It is a phenomenon exclusive to optical fibers
Q. Which of the following statements about triangles is true?
  • A. All triangles are equilateral.
  • B. The sum of the angles in a triangle is 180 degrees.
  • C. A triangle can have two right angles.
  • D. The area of a triangle is always greater than its perimeter.
Q. Which of the following statements about variable J is supported by the mixed graph? (2023)
  • A. J has a linear relationship with variable K.
  • B. J is affected by external factors.
  • C. J shows a cyclical pattern.
  • D. J's trend is unpredictable.
Q. Which of the following statements about viscosity is true?
  • A. Viscosity is a scalar quantity
  • B. Viscosity is a vector quantity
  • C. Viscosity is temperature independent
  • D. Viscosity increases with shear rate
Q. Which of the following statements about weak acids is true?
  • A. They completely dissociate in solution
  • B. They have a high pKa value
  • C. They have a low pH
  • D. They are strong electrolytes
Q. Which of the following statements about X-rays is true?
  • A. They have a longer wavelength than visible light
  • B. They are charged particles
  • C. They can be focused with a lens
  • D. They are a form of electromagnetic radiation
Q. Which of the following statements best describes the concept of 'Sustainable Development'?
  • A. Development that meets the needs of the present without compromising the ability of future generations to meet their own needs.
  • B. Development that focuses solely on economic growth without considering environmental impacts.
  • C. Development that prioritizes industrialization over agricultural practices.
  • D. Development that is limited to urban areas and neglects rural development.
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