Major Competitive Exams

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Q. In a reversible reaction at equilibrium, if the concentration of reactants is increased, what will happen to the equilibrium position? (2023)
  • A. Shift to the right
  • B. Shift to the left
  • C. No change
  • D. Depends on temperature
Q. In a reversible reaction at equilibrium, if the temperature is increased, what will happen to the equilibrium position if the reaction is exothermic? (2023)
  • A. Shift to the right
  • B. Shift to the left
  • C. No change
  • D. Increase the rate of reaction
Q. In a reversible reaction at equilibrium, what happens if the concentration of a reactant is increased? (2023)
  • A. The equilibrium shifts to the right
  • B. The equilibrium shifts to the left
  • C. The equilibrium remains unchanged
  • D. The reaction stops
Q. In a reversible reaction at equilibrium, what happens if the temperature is increased? (2019)
  • A. The reaction shifts to the exothermic side
  • B. The reaction shifts to the endothermic side
  • C. No change occurs
  • D. The reaction rate decreases
Q. In a reversible reaction at equilibrium, which of the following statements is true?
  • A. The rate of the forward reaction is equal to the rate of the reverse reaction.
  • B. The concentration of reactants is greater than products.
  • C. The reaction has stopped completely.
  • D. The temperature remains constant.
Q. In a reversible reaction, if the concentration of products increases, what happens to the equilibrium position? (2021) 2021
  • A. It shifts to the left
  • B. It shifts to the right
  • C. It remains unchanged
  • D. It shifts to the center
Q. In a reversible reaction, if the concentration of products increases, what happens to the equilibrium position? (2021)
  • A. It shifts to the left
  • B. It shifts to the right
  • C. It remains unchanged
  • D. It shifts to the center
Q. In a reversible reaction, if the concentration of products increases, what happens to the rate of the forward reaction? (2021)
  • A. It increases
  • B. It decreases
  • C. It remains constant
  • D. It becomes zero
Q. In a reversible reaction, if the concentration of products is increased, what will happen to the equilibrium position? (2021)
  • A. Shift to the left
  • B. Shift to the right
  • C. No change
  • D. Depends on temperature
Q. In a reversible reaction, if the concentration of products is increased, what will happen to the equilibrium? (2021)
  • A. Shift to the right
  • B. Shift to the left
  • C. No change
  • D. Increase in temperature
Q. In a reversible reaction, if the concentration of reactants is increased, what will happen to the position of equilibrium? (2021)
  • A. It will shift to the right
  • B. It will shift to the left
  • C. It will remain unchanged
  • D. It will shift to the center
Q. In a reversible reaction, if the concentration of reactants is increased, what will happen to the equilibrium position? (2021)
  • A. It will shift to the right
  • B. It will shift to the left
  • C. It will remain unchanged
  • D. It will shift to the center
Q. In a reversible reaction, if the concentration of the reactants is increased, what will happen to the position of equilibrium? (2023)
  • A. It will shift to the right
  • B. It will shift to the left
  • C. It will remain unchanged
  • D. It will shift to the center
Q. In a reversible reaction, if the forward reaction is exothermic, what can be said about the reverse reaction? (2022)
  • A. It is also exothermic
  • B. It is endothermic
  • C. It has no effect on equilibrium
  • D. It is spontaneous
Q. In a rhombus, what can be said about the angles?
  • A. All angles are equal
  • B. Opposite angles are equal
  • C. Adjacent angles are equal
  • D. All angles are right angles
Q. In a rhombus, what can be said about the diagonals?
  • A. They are equal and bisect each other at right angles.
  • B. They are unequal and bisect each other at right angles.
  • C. They are equal and do not bisect each other.
  • D. They are unequal and do not bisect each other.
Q. In a rhombus, what is the relationship between the lengths of the diagonals?
  • A. They are equal
  • B. They are perpendicular
  • C. They bisect the angles
  • D. Both B and C
Q. In a right triangle, if one angle is 30 degrees and the hypotenuse is 10 cm, what is the length of the side opposite to the 30-degree angle? (2019)
  • A. 5 cm
  • B. 10 cm
  • C. 8 cm
  • D. 7 cm
Q. In a right triangle, if one angle is 30 degrees and the hypotenuse is 10 cm, what is the length of the side opposite the 30-degree angle? (2020)
  • A. 5 cm
  • B. 10 cm
  • C. 8 cm
  • D. 7 cm
Q. In a right triangle, if one angle is 30 degrees, what is the measure of the other non-right angle?
  • A. 60 degrees
  • B. 30 degrees
  • C. 45 degrees
  • D. 90 degrees
Q. In a right triangle, if one angle is 30 degrees, what is the ratio of the lengths of the sides opposite to the 30 degrees and 60 degrees?
  • A. 1:√3
  • B. 1:2
  • C. √3:1
  • D. 2:1
Q. In a right triangle, if one angle is 30 degrees, what is the ratio of the lengths of the sides opposite to the 30 degrees and 60 degrees angles? (2019)
  • A. 1:√3
  • B. 1:2
  • C. √3:1
  • D. 2:1
Q. In a right triangle, if one angle is 45 degrees, what is the measure of the other non-right angle? (2021)
  • A. 30 degrees
  • B. 45 degrees
  • C. 60 degrees
  • D. 75 degrees
Q. In a right triangle, if one angle measures 30 degrees, what is the measure of the other non-right angle?
  • A. 60 degrees
  • B. 30 degrees
  • C. 90 degrees
  • D. 45 degrees
Q. In a right triangle, if one leg is 5 and the hypotenuse is 13, what is the length of the other leg?
  • A. 12
  • B. 10
  • C. 8
  • D. 6
Q. In a right triangle, if one of the angles is 30 degrees, what is the measure of the other non-right angle?
  • A. 30 degrees
  • B. 45 degrees
  • C. 60 degrees
  • D. 90 degrees
Q. In a right triangle, if one of the non-right angles is 30 degrees, what is the measure of the other non-right angle?
  • A. 60 degrees
  • B. 30 degrees
  • C. 90 degrees
  • D. 45 degrees
Q. In a right triangle, if one of the non-right angles is 45 degrees, what is the measure of the other non-right angle?
  • A. 45 degrees
  • B. 60 degrees
  • C. 30 degrees
  • D. 90 degrees
Q. In a right triangle, if the angles are 30° and 60°, what is the ratio of the lengths of the sides opposite these angles?
  • A. 1:√3
  • B. 1:2
  • C. 1:1
  • D. 1:√2
Q. In a right triangle, if the hypotenuse is 10 and one leg is 6, what is the length of the other leg?
  • A. 4
  • B. 5
  • C. 6
  • D. 8
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