Major Competitive Exams

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Q. Which of the following expressions is equivalent to (x + 2)(x - 3)?
  • A. x^2 - x - 6
  • B. x^2 + x - 6
  • C. x^2 - 5x - 6
  • D. x^2 - x + 6
Q. Which of the following expressions is equivalent to (x^3 * y^2)^2?
  • A. x^6 * y^4
  • B. x^5 * y^2
  • C. x^3 * y^6
  • D. x^2 * y^2
Q. Which of the following expressions is equivalent to 2(x + 3) - 4?
  • A. 2x + 6 - 4
  • B. 2x + 2
  • C. 2x + 10
  • D. 2x - 2
Q. Which of the following expressions is equivalent to 2(x + 3)?
  • A. 2x + 3
  • B. 2x + 6
  • C. x + 6
  • D. 2x + 9
Q. Which of the following expressions is equivalent to 3(x + 4) - 2(x - 1)?
  • A. x + 14
  • B. x + 10
  • C. x + 12
  • D. x + 16
Q. Which of the following expressions is equivalent to 3(x + 4)?
  • A. 3x + 12
  • B. 3x + 4
  • C. x + 12
  • D. 3x + 7
Q. Which of the following expressions is equivalent to 3^(2x) * 3^(x+1)?
  • A. 3^(3x + 1)
  • B. 3^(2x + x + 1)
  • C. 3^(x + 2)
  • D. 3^(2x + 1)
Q. Which of the following expressions is equivalent to log_10(0.01)?
  • A. -2
  • B. 2
  • C. 0
  • D. -1
Q. Which of the following expressions is equivalent to log_10(1/100)?
  • A. -2
  • B. 2
  • C. 0
  • D. -1
Q. Which of the following expressions is equivalent to log_10(100) + log_10(10)?
  • A. 3
  • B. 4
  • C. 5
  • D. 6
Q. Which of the following expressions is equivalent to log_10(1000)?
  • A. 3
  • B. 10
  • C. 100
  • D. 1
Q. Which of the following expressions is equivalent to log_5(25) + log_5(5)?
  • A. log_5(125)
  • B. log_5(30)
  • C. log_5(20)
  • D. log_5(10)
Q. Which of the following expressions represents the coefficient of x^3 in the expansion of (2x + 3)^5?
  • A. 10
  • B. 60
  • C. 90
  • D. 150
Q. Which of the following expressions represents the inverse of 4^x?
  • A. 4^(-x)
  • B. 1/4^x
  • C. 4^(1-x)
  • D. Both 1/4^x and 4^(-x)
Q. Which of the following expressions represents the polynomial obtained by multiplying (x + 1) and (x - 1)?
  • A. x^2 - 1
  • B. x^2 + 1
  • C. x^2 + 2
  • D. x^2 - 2
Q. Which of the following expressions represents the product of the roots of the polynomial h(x) = x^2 - 4x + 4?
  • A. 4
  • B. 0
  • C. -4
  • D. 2
Q. Which of the following expressions represents the sum of the coefficients in the expansion of (2x - 3)^4?
  • A. 1
  • B. -1
  • C. 81
  • D. -81
Q. Which of the following expressions represents the sum of the roots of the quadratic equation 5x^2 + 3x - 2 = 0?
  • A. -3/5
  • B. 3/5
  • C. 2/5
  • D. -2/5
Q. Which of the following expressions represents the vertex of the quadratic equation y = ax^2 + bx + c?
  • A. (-b/2a, f(-b/2a))
  • B. (b/2a, f(b/2a))
  • C. (c/a, 0)
  • D. (0, c)
Q. Which of the following f-block elements is known for its use in nuclear reactors?
  • A. Plutonium
  • B. Neptunium
  • C. Uranium
  • D. Thorium
Q. Which of the following f-block elements is used in making strong permanent magnets? (2022)
  • A. Cerium
  • B. Neodymium
  • C. Plutonium
  • D. Uranium
Q. Which of the following f-block elements is used in nuclear reactors?
  • A. Uranium
  • B. Thorium
  • C. Plutonium
  • D. Neptunium
Q. Which of the following f-block elements is used in the production of nuclear reactors? (2023)
  • A. Uranium
  • B. Thorium
  • C. Plutonium
  • D. Neptunium
Q. Which of the following factors contributed most significantly to the rise of poverty in India during the British colonial period?
  • A. A. Agricultural policies
  • B. B. Industrialization
  • C. C. Education reforms
  • D. D. Urbanization
Q. Which of the following factors contributed most significantly to the rise of the Mughal Empire in India?
  • A. Military superiority over regional kingdoms
  • B. Support from local chieftains
  • C. Weakness of the Delhi Sultanate
  • D. Religious tolerance policies
Q. Which of the following factors contributed to the agricultural decline in the Roman Empire?
  • A. Overreliance on slave labor
  • B. Technological stagnation
  • C. Climate change
  • D. All of the above
Q. Which of the following factors does NOT affect Gibbs Free Energy?
  • A. Temperature
  • B. Pressure
  • C. Concentration of reactants
  • D. Nature of the solvent
Q. Which of the following factors does NOT affect surface tension?
  • A. Temperature
  • B. Impurities
  • C. Density
  • D. Nature of the liquid
Q. Which of the following factors does NOT affect the accuracy of a potentiometer?
  • A. Temperature
  • B. Length of the wire
  • C. Material of the wire
  • D. Color of the wire
Q. Which of the following factors does NOT affect the adsorption capacity of a solid?
  • A. Surface area
  • B. Temperature
  • C. Nature of the adsorbate
  • D. Color of the adsorbent
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