Odisha Board - Class 11 (+2 First Year) previous year questions (PYQ)
12,330 previous year Odisha Board - Class 11 (+2 First Year) questions, grouped by year, with answers and solutions.
2026 (2742 questions)
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2025 (809 questions)
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Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): The square root of 2 ($\sqrt{2}$) is an irrational real number.
Reason (R): The square root of any positive prime integer is an irrational number.
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2024 (1322 questions)
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2023 (803 questions)
My English Book (Class 1-5): What is the central theme of 'ବିନିମୟ ବିଲ୍ (Bills of Exchange)'?
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2022 (816 questions)
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Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): Plant stomata close rapidly under severe soil moisture deficit and drought stress.
Reason (R): Abscisic acid (ABA) synthesized during drought induces potassium and anion efflux from guard cells, causing loss of turgor pressure.
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2021 (815 questions)
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2020 (854 questions)
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2019 (817 questions)
Directions: In the following question, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): Vegetative propagation is widely practiced for growing sugarcane, banana, rose, and jasmine.
Reason (R): Plants raised by vegetative reproduction can bear flowers and fruits earlier than those produced from seeds and retain parent genetic traits.
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Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): The electrical conductivity of an intrinsic semiconductor increases with rise in temperature.
Reason (R): With increase in temperature, covalent bonds rupture, generating additional free conduction electrons and mobile holes.
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2018 (813 questions)
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ଆମ ପରିବେଶ (ଓଡ଼ିଶା ପ୍ରାଥମିକ ବିଜ୍ଞାନ): 'ଗତିର ନିୟମ (Laws of Motion)' ଆମ ପରିବେଶ ପାଇଁ କାହିଁକି ଆବଶ୍ୟକ?
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2017 (834 questions)
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2016 (833 questions)
Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): Heavy water ($D_2O$) is utilized as a moderator in thermal nuclear power reactors.
Reason (R): Deuterium nuclei slow down energetic fission neutrons through elastic collisions without substantial parasitic neutron absorption.
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Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:
Assertion (A): A concave mirror can form both real inverted images and virtual erect images.
Reason (R): When an object is placed between the pole and focus of a concave mirror, it forms an erect, magnified, virtual image.
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2015 (872 questions)
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