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Assertion and Reason Reasoning Quiz Details
| Quiz Name | Assertion and Reason |
| Category | Reasoning |
| Number of Questions | 22 |
| Time | 30 Minutes |
| Exam Type | MCQ (Multiple Choice Questions) |
Assertion and Reason Quiz Online Test – Practice Now
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1. Assertion: The moon is a natural satellite of Earth.
Reason: The gravitational force of Earth holds the moon in its orbit.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – The gravitational force of Earth holds the moon in its orbit, making it a natural satellite of Earth.
2. Assertion: The human body needs oxygen to survive.
Reason: Oxygen is essential for cellular respiration, which produces energy for the body.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – Oxygen is essential for cellular respiration, which produces energy for the body, and the human body needs oxygen to survive.
3. Assertion: A square has four equal sides.
Reason: A square is a quadrilateral with four right angles.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – A square has four equal sides and four right angles, making it a quadrilateral with equal sides.
4. Assertion: The sum of the angles in a triangle is 180 degrees.
Reason: A triangle is a polygon with three sides.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – A triangle is a polygon with three sides, and the sum of the interior angles of any polygon with n sides is (n-2) times 180 degrees.
5. Assertion: DNA is the genetic material of living organisms.
Reason: DNA contains the genetic instructions necessary for the development and function of all living organisms.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – DNA is the genetic material of living organisms, containing the instructions for the development and function of all living things.
6. Assertion: Chlorophyll is necessary for photosynthesis.
Reason: Chlorophyll is the pigment that absorbs light energy for photosynthesis to occur.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – Chlorophyll is a green pigment found in plant cells that absorbs light energy during photosynthesis, making it necessary for the process to occur.
7. Assertion: Water boils at 100°C at standard atmospheric pressure.
Reason: Boiling point of water increases with an increase in pressure.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – Water boils at 100°C at standard atmospheric pressure, and an increase in pressure increases the boiling point of water.
8. Assertion: Sound travels faster in solids than in liquids.
Reason: Solids have a higher density than liquids, which allows sound to travel faster.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – Sound travels faster in solids than in liquids because of their higher density, which allows sound waves to travel more quickly.
9. Assertion: The Earth revolves around the sun.
Reason: The gravitational force of the sun holds the planets in their orbits.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – The Earth revolves around the sun due to the gravitational force of the sun holding the planets in their orbits.
10. Assertion: Iron rusts when exposed to air.
Reason: Rusting is a chemical reaction between iron and oxygen in the presence of water.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – Iron rusts when exposed to air due to a chemical reaction between iron, oxygen, and water.
11. Assertion: A parallelogram has opposite sides that are parallel.
Reason: A parallelogram is a quadrilateral with two pairs of parallel sides.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – A parallelogram has opposite sides that are parallel because it is defined as a quadrilateral with two pairs of parallel sides.
12. Assertion: The sum of the exterior angles of a polygon is 360 degrees.
Reason: Each exterior angle of a polygon is equal to the sum of the two interior angles adjacent to it.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – The sum of the exterior angles of a polygon is 360 degrees because each exterior angle is equal to the sum of the two interior angles adjacent to it.
13. Assertion: The distance between two points on a coordinate plane can be calculated using the Pythagorean theorem.
Reason: The Pythagorean theorem states that in a right triangle, the sum of the squares of the two shorter sides is equal to the square of the hypotenuse.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – The distance between two points on a coordinate plane can be calculated using the Pythagorean theorem because it applies to any right triangle, including those formed by the coordinates of the two points.
14. Assertion: All squares are rectangles.
Reason: A rectangle is a quadrilateral with four right angles and opposite sides of equal length, and a square meets these criteria.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – All squares are rectangles because they meet the criteria of a rectangle, which includes having four right angles and opposite sides of equal length.
15. Assertion: A negative times a negative is a positive.
Reason: This is a rule of multiplication in arithmetic and algebra.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – A negative times a negative is a positive because it is a rule of multiplication in arithmetic and algebra.
16. Assertion: All right angles are congruent.
Reason: A right angle measures 90 degrees, and any angle that measures 90 degrees is a right angle.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – All right angles are congruent because they measure 90 degrees, and any angle that measures 90 degrees is a right angle.
17. Assertion: The sum of the angles in a triangle is 180 degrees.
Reason: This is a property of triangles in Euclidean geometry.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – The sum of the angles in a triangle is 180 degrees because it is a property of triangles in Euclidean geometry.
18. Assertion: The opposite angles of a parallelogram are congruent.
Reason: A parallelogram is a quadrilateral with opposite sides that are parallel and congruent.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – The opposite angles of a parallelogram are congruent because a parallelogram is a quadrilateral with opposite sides that are parallel and congruent, which creates pairs of opposite angles that are congruent.
19. Assertion: The product of two negative numbers is a positive number.
Reason: This is a rule of multiplication in arithmetic and algebra.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – The product of two negative numbers is a positive number because it is a rule of multiplication in arithmetic and algebra.
20. Assertion: A rhombus is a parallelogram.
Reason: A parallelogram is a quadrilateral with opposite sides that are parallel and congruent, and a rhombus meets these criteria.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – A rhombus is a parallelogram because it meets the criteria of a parallelogram, which includes having opposite sides that are parallel and congruent.
21. Assertion: A square is a rectangle.
Reason: A rectangle is a quadrilateral with four right angles and opposite sides of equal length, and a square meets these criteria.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – A square is a rectangle because it meets the criteria of a rectangle, which includes having four right angles and opposite sides of equal length.
22. Assertion: A rectangle is a parallelogram.
Reason: A parallelogram is a quadrilateral with opposite sides that are parallel, and a rectangle meets these criteria.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – A rectangle is a parallelogram because it meets the criteria of a parallelogram, which includes having opposite sides that are parallel.
23. Assertion: A line segment can be extended infinitely in both directions.
Reason: A line segment is a part of a line that has two endpoints.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – A line segment can be extended infinitely in both directions because it is a part of a line that has no end, and it has two endpoints that mark the limits of the segment.
24. Assertion: The sum of two acute angles is less than 180 degrees.
Reason: An acute angle is an angle that measures less than 90 degrees.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – The sum of two acute angles is less than 180 degrees because an acute angle is an angle that measures less than 90 degrees, and the sum of two angles less than 90 degrees is less than 180 degrees.
25. Assertion: The volume of a rectangular prism is length times width times height.
Reason: This is a formula for calculating the volume of a rectangular prism in three-dimensional geometry.
a) Both assertion and reason are true and reason is the correct explanation of the assertion.
b) Both assertion and reason are true but reason is not the correct explanation of the assertion.
c) Assertion is true but the reason is false.
d) Assertion is false but the reason is true.
Answer: (a) Both assertion and reason are true and reason is the correct explanation of the assertion.
Explanation – The volume of a rectangular prism is length times width times height because it is a formula for calculating the volume of a rectangular prism in three-dimensional geometry.
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