Major Competitive Exams

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Q. Which of the following is the unit of pressure? (2023)
  • A. Newton
  • B. Pascal
  • C. Joule
  • D. Watt
Q. Which of the following is the upper house of the State Legislature?
  • A. Lok Sabha
  • B. Rajya Sabha
  • C. Vidhan Sabha
  • D. Vidhan Parishad
Q. Which of the following is true about a buffer solution?
  • A. Resists changes in pH
  • B. Has a pH of 7
  • C. Contains only strong acids
  • D. Is always neutral
Q. Which of the following is true about a saturated solution?
  • A. It contains more solute than can dissolve
  • B. It contains less solute than can dissolve
  • C. It is always at boiling point
  • D. It is always at freezing point
Q. Which of the following is true about an exothermic reaction?
  • A. ΔH is positive
  • B. ΔH is negative
  • C. ΔH is zero
  • D. ΔH can be either positive or negative
Q. Which of the following is true about brittle materials? (2023)
  • A. They can undergo large deformations
  • B. They exhibit high ductility
  • C. They fracture without significant plastic deformation
  • D. They are always elastic
Q. Which of the following is true about elastic potential energy stored in a stretched wire?
  • A. It is proportional to the square of the elongation
  • B. It is proportional to the elongation
  • C. It is independent of the elongation
  • D. It is inversely proportional to the elongation
Q. Which of the following is true about exothermic reactions? (2022)
  • A. They absorb heat.
  • B. They release heat.
  • C. They have a positive ΔH.
  • D. They are always spontaneous.
Q. Which of the following is true about significant figures?
  • A. All zeros are significant
  • B. Leading zeros are significant
  • C. Trailing zeros in a whole number are significant
  • D. Trailing zeros in a decimal are significant
Q. Which of the following is true about the adsorption of gases on solids? (2023)
  • A. It is always an exothermic process
  • B. It is always an endothermic process
  • C. It can be either exothermic or endothermic
  • D. It does not involve energy changes
Q. Which of the following is true about the classification of living organisms? (2022)
  • A. It is static and unchanging
  • B. It is based on evolutionary relationships
  • C. It does not consider genetic information
  • D. It is only based on morphological features
Q. Which of the following is true about the entropy of a system?
  • A. It always decreases.
  • B. It is a measure of disorder.
  • C. It is independent of temperature.
  • D. It can never increase.
Q. Which of the following is true about the escape velocity from the surface of the Earth?
  • A. It is independent of the mass of the object
  • B. It is dependent on the mass of the Earth
  • C. It is dependent on the radius of the Earth
  • D. All of the above
Q. Which of the following is true about the expression 2^(x+y)?
  • A. It can be expressed as 2^x + 2^y.
  • B. It can be expressed as 2^x * 2^y.
  • C. It is always greater than 2.
  • D. It is equal to 2 when x and y are both 0.
Q. Which of the following is true about the Freundlich adsorption isotherm?
  • A. It applies only to monolayer adsorption
  • B. It is applicable to heterogeneous surfaces
  • C. It assumes a fixed number of adsorption sites
  • D. It is a linear isotherm
Q. Which of the following is true about the Gibbs free energy change (ΔG) for a spontaneous process?
  • A. ΔG > 0
  • B. ΔG < 0
  • C. ΔG = 0
  • D. ΔG is always positive
Q. Which of the following is true about the Gibbs free energy change (ΔG)?
  • A. ΔG < 0 indicates a spontaneous process
  • B. ΔG > 0 indicates a spontaneous process
  • C. ΔG = 0 indicates a non-spontaneous process
  • D. ΔG is always positive
Q. Which of the following is true about the heat capacity of a substance?
  • A. It is always constant
  • B. It depends on the amount of substance
  • C. It is independent of temperature
  • D. It is the same for all substances
Q. Which of the following is true about the International Date Line?
  • A. It is at 0° longitude
  • B. It is at 180° longitude
  • C. It is at 90° longitude
  • D. It is at 45° longitude
Q. Which of the following is true about the law of conservation of energy?
  • 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 is true about the number 2500?
  • A. It has 2 significant figures
  • B. It has 3 significant figures
  • C. It has 4 significant figures
  • D. It has infinite significant figures
Q. Which of the following is true about the period of a satellite in a low Earth orbit compared to a satellite in a high Earth orbit?
  • A. The period is longer for low Earth orbit
  • B. The period is shorter for low Earth orbit
  • C. The periods are the same
  • D. It depends on the satellite's mass
Q. Which of the following is true about the period of a satellite in a low Earth orbit compared to a satellite in a geostationary orbit?
  • A. The period is longer for the low Earth orbit
  • B. The period is shorter for the low Earth orbit
  • C. The periods are the same
  • D. The period depends on the satellite's mass
Q. Which of the following is true about the roots of a polynomial of odd degree?
  • A. It has an even number of roots.
  • B. It has at least one real root.
  • C. It has no real roots.
  • D. It has exactly two real roots.
Q. Which of the following is true about the roots of the polynomial P(x) = x^2 + 4x + 4?
  • A. It has two distinct real roots.
  • B. It has one real root with multiplicity 2.
  • C. It has no real roots.
  • D. It has two complex roots.
Q. Which of the following is true about the roots of the polynomial x^2 + 4x + 4?
  • A. It has two distinct real roots.
  • B. It has one real root with multiplicity 2.
  • C. It has no real roots.
  • D. It has two complex roots.
Q. Which of the following is true about the shear modulus of a material? (2023)
  • A. It measures the material's response to shear stress
  • B. It is always greater than Young's modulus
  • C. It is independent of temperature
  • D. It is the same as bulk modulus
Q. Which of the following is true about viruses? (2022)
  • A. They are prokaryotic
  • B. They can reproduce independently
  • C. They are acellular
  • D. They have a cellular structure
Q. Which of the following is true for a satellite in a low Earth orbit?
  • A. It has a very high orbital speed
  • B. It has a very low orbital speed
  • C. It does not experience any gravitational force
  • D. It is not affected by atmospheric drag
Q. Which of the following is true for all angles A?
  • A. sin^2 A + cos^2 A = 1
  • B. tan A = sin A/cos A
  • C. sec A = 1/cos A
  • D. All of the above
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