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Uttarakhand Board (UBSE) - Class 10 (High School) previous year questions (PYQ)

7,519 previous year Uttarakhand Board (UBSE) - Class 10 (High School) questions, grouped by year, with answers and solutions.

2026 (1500 questions)

Q1.

जल संरक्षण व परंपरागत स्रोत: 'आनुवंशिकता एवं जैव विकास (मेंडल के नियम, लिंग निर्धारण)' उत्तराखंड के किस पारंपरिक जल स्रोत (धारा, नौला, चाल-खाल) से संबंधित है?

(A)

नौला (प्राकृतिक जल कुंड), धारा एवं चाल-खाल जल संचयन (आनुवंशिकता एवं जैव विकास (मेंडल के नियम, लिंग निर्धारण))

(B)

पानी को व्यर्थ बहाना

(C)

गधेरे में कचरा डालना

(D)

इनमें से कोई नहीं

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Q2.
Calculate 4 × 5.

(A)
22
(B)
20
(C)
15
(D)
24
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2025 (532 questions)

Q1.

Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:

Which statutory enactment was passed by the Indian Parliament following the Bhopal gas disaster and oleum gas leak?


(A)
The Environment (Protection) Act, 1986
(B)
The Factories Act, 1948
(C)
The Wildlife Protection Act, 1972
(D)
The Indian Penal Code, 1860
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Q2.

[MAT] If '+' means '$\times$', '-' means '$\div$', '$\times$' means '-', and '$\div$' means '+', what is the value of: $20 + 5 - 10 \div 4 \times 2$?


(A)
12
(B)
15
(C)
10
(D)
8
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2024 (1384 questions)

Q1.
Regarding संस्कृत (शेमुषी द्वितीयो भागः), which statement represents a core foundational principle of Importance of environmental conservation and biodiversity?

(A)
Accelerating deforestation for urban sprawl
(B)
Maximizing industrial waste output
(C)
Eliminating apex predators from natural habitats
(D)
Maintaining ecological equilibrium, nutrient cycling, and climate regulation
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Q2.
In Biological Sciences, identify the accurate description regarding Structural and functional filtration unit of the human kidney.

(A)
Hepatic lobule
(B)
Neuron
(C)
Alveolus
(D)
Nephron, consisting of glomerulus, Bowman's capsule, and renal tubule
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2023 (428 questions)

Q1.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): An employer is vicariously liable for tortious civil wrongs committed by an employee during the authorized course of employment.

Reason (R): The doctrine of vicarious liability is founded on the legal maxims *respondeat superior* (let the master answer) and *qui facit per alium facit per se*.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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Q2.
Regarding संस्कृत (शेमुषी द्वितीयो भागः), which statement represents a core foundational principle of Correct grammatical structure of affirmative sentences?

(A)
Object + Verb + Subject
(B)
Object + Subject + Verb
(C)
Verb + Subject + Object
(D)
Subject + Verb + Object in standard grammatical syntax
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2022 (490 questions)

Q1.

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.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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Q2.

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 Simon Commission was met with widespread nationwide boycotts and black flag protests upon landing in Bombay in 1928.

Reason (R): The British colonial government failed to appoint a single Indian representative to the seven-member Indian Statutory Commission.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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2021 (461 questions)

Q1.

Directions: In the following question, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): Self-Help Groups (SHGs) help rural women overcome the lack of collateral security.

Reason (R): Regular group savings and collective peer accountability enable SHGs to obtain collateral-free bank credit for self-employment activities.


(A)
Both Assertion (A) and Reason (R) are true, and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true, but Reason (R) is NOT the correct explanation of Assertion (A).
(C)
Assertion (A) is true, but Reason (R) is false.
(D)
Assertion (A) is false, but Reason (R) is true.
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Q2.

Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:

Which statutory enactment was passed by the Indian Parliament following the Bhopal gas disaster and oleum gas leak?


(A)
The Environment (Protection) Act, 1986
(B)
The Factories Act, 1948
(C)
The Wildlife Protection Act, 1972
(D)
The Indian Penal Code, 1860
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2020 (447 questions)

Q1.
What is the sum of 68 and 42?

(A)
110
(B)
109
(C)
120
(D)
111
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Q2.

हिमालयी वनस्पति व औषधियां: 'रासायनिक अभिक्रियाएं एवं समीकरण (संतुलन, संयोजन, वियोजन, विस्थापन, रेडॉक्स)' से हमें कौन-सा प्रमुख उत्पाद या लाभ मिलता है?

(A)

बुरांश का जूस, बांज के पेड़, स्वच्छ जल एवं जड़ी-बूटियां (रासायनिक अभिक्रियाएं एवं समीकरण (संतुलन, संयोजन, वियोजन, विस्थापन, रेडॉक्स))

(B)

विषैली गैसें

(C)

केवल सूखापन

(D)

इनमें से कोई नहीं

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2019 (429 questions)

Q1.

[SAT] Which gas is primarily responsible for the greenhouse effect and global warming?


(A)
Carbon dioxide ($CO_2$)
(B)
Nitrogen ($N_2$)
(C)
Oxygen ($O_2$)
(D)
Argon ($Ar$)
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Q2.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): Danger signals on communication towers and traffic posts are always illuminated in red color.

Reason (R): Red light has the longest wavelength in the visible spectrum and suffers minimum Rayleigh scattering ($I \propto 1/\lambda^4$) through fog and smoke.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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2018 (466 questions)

Q1.
In Chemistry, examine the topic of pH of a neutral aqueous solution at 25°C (298 K). Which statement is scientifically accurate?

(A)
pH = 14
(B)
pH = 0
(C)
pH = 1
(D)
pH = 7, where [H^+] = [OH^-] = 10^{-7} \text{ M}
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Q2.
In Chemistry, examine the topic of Catalyst used in the Haber-Bosch process for industrial synthesis of Ammonia ($N_2 + 3H_2 \rightleftharpoons 2NH_3$). Which statement is scientifically accurate?

(A)
Vanadium pentoxide (V2O5)
(B)
Finely divided Iron (Fe) with Molybdenum (Mo) or K2O/Al2O3 as promoter
(C)
Nickel (Ni) in Raney form
(D)
Platinum gauze (Pt)
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2017 (465 questions)

Q1.
Regarding संस्कृत (शेमुषी द्वितीयो भागः), which statement represents a core foundational principle of Correct grammatical structure of affirmative sentences?

(A)
Object + Verb + Subject
(B)
Subject + Verb + Object in standard grammatical syntax
(C)
Object + Subject + Verb
(D)
Verb + Subject + Object
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Q2.

Refer to the Case Study 'Case Study: Parabolic Cable Geometry in Civil Engineering Suspension Bridges' to answer:

What is the vertical height of the suspension cable at a horizontal distance of $25\text{ m}$ from the bridge center?


(A)
$y = 0.008(25)^2 + 5 = 0.008(625) + 5 = 5 + 5 = 10\text{ m}$
(B)
$y = 15\text{ m}$
(C)
$y = 12.5\text{ m}$
(D)
$y = 8\text{ m}$
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2016 (479 questions)

Q1.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): Terrace farming is widely practiced in hilly and mountainous agro-ecosystems.

Reason (R): Terraces create stepped flat platforms along slopes that significantly reduce the surface velocity of water runoff and prevent topsoil erosion.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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Q2.

Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:

What is the crucial legal distinction between the English rule of 'Strict Liability' and Indian 'Absolute Liability'?


(A)
Absolute Liability admits of no statutory exceptions whatsoever (such as Act of God, third-party act, or consent)
(B)
Absolute liability applies only to government-owned public sector enterprises
(C)
Strict liability requires proof of criminal mens rea while absolute liability does not
(D)
Absolute liability caps total damage compensation at 1 lakh rupees
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2015 (438 questions)

Q1.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): An employer is vicariously liable for tortious civil wrongs committed by an employee during the authorized course of employment.

Reason (R): The doctrine of vicarious liability is founded on the legal maxims *respondeat superior* (let the master answer) and *qui facit per alium facit per se*.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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Q2.

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 value of $\sin\theta$ cannot exceed 1 for any real angle $\theta$.

Reason (R): In any right-angled triangle, the hypotenuse is the strictly longest side, ensuring the ratio $\text{Perpendicular}/\text{Hypotenuse} \le 1$.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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