Junior college (Class 11-12)

Rajasthan Board - Class 12 (Senior Secondary Board Exam) previous year questions (PYQ)

6,346 previous year Rajasthan Board - Class 12 (Senior Secondary Board Exam) questions, grouped by year, with answers and solutions.

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2026 (1212 questions)

Q1.
In Physics, consider the SI unit of electric current and magnetic flux density. Which statement correctly defines this principle?

(A)
Ohm (Ω) and Henry (H)
(B)
Volt (V) and Weber (Wb)
(C)
Ampere (A) and Tesla (T)
(D)
Coulomb (C) and Gauss (G)
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Q2.

आपदा प्रबंधन: 'किरण प्रकाशिकी एवं प्रकाशिक यंत्र (Ray Optics - लेंस निर्माता सूत्र, प्रिज्म, सूक्ष्मदर्शी)' (अकाल, बाढ़ या भूकंप) के समय क्या सावधानी रखनी चाहिए?


(A)
सुरक्षित स्थान पर जाना, राहत कार्यों में सहयोग और जल-अन्न का संरक्षण (किरण प्रकाशिकी एवं प्रकाशिक यंत्र (Ray Optics - लेंस निर्माता सूत्र, प्रिज्म, सूक्ष्मदर्शी))
(B)
अफवाहें फैलाना
(C)
बिजली के तारों को छूना
(D)
इनमें से कोई नहीं
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2025 (384 questions)

Q1.
In Biological Sciences, identify the accurate description regarding Primary photosynthetic pigment responsible for absorbing blue and red light wavelengths.

(A)
Carotenoids
(B)
Phycobilin
(C)
Anthocyanin
(D)
Chlorophyll a
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Q2.
In Biological Sciences, identify the accurate description regarding Process by which green plants release water vapor into the atmosphere primarily through stomata.

(A)
Transpiration, which drives sap ascent and cools plant tissues
(B)
Imbibition
(C)
Respiration
(D)
Guttation
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2024 (908 questions)

Q1.

Higher Academic Core: In advanced conceptual study of 'वैद्युत आवेश तथा क्षेत्र (Electric Charges and Fields - कूलॉम का नियम, गाउस का नियम)' in Electromagnetism & Optics, which foundational mechanism is universally verified?

(A)

Empirically validated biological, physical, or social dynamics following standard scientific methodology (वैद्युत आवेश तथा क्षेत्र (Electric Charges and Fields - कूलॉम का नियम, गाउस का नियम))

(B)

Unsubstantiated speculative claims lacking experimental replication or peer verification

(C)

Deterministic models that reject thermodynamic entropy and stochastic variance

(D)

Isolated observations taken under non-standard uncontrolled environmental extremes

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Q2.

Advanced Research & Methodology: In scholarly analysis of 'वैद्युत आवेश तथा क्षेत्र (Electric Charges and Fields - कूलॉम का नियम, गाउस का नियम)', which methodological approach ensures reproducibility and minimizes systematic bias?

(A)

Controlled multi-factorial experimental design with blinded statistical validation (वैद्युत आवेश तथा क्षेत्र (Electric Charges and Fields - कूलॉम का नियम, गाउस का नियम))

(B)

Post-hoc selective data reporting highlighting only conforming sample sets

(C)

Uncalibrated qualitative impressions without standardized measurement criteria

(D)

Extrapolating microscopic laboratory observations directly to macro ecosystems without validation

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2023 (762 questions)

Q1.
In Biological Sciences, identify the accurate description regarding Process by which green plants release water vapor into the atmosphere primarily through stomata.

(A)
Guttation
(B)
Transpiration, which drives sap ascent and cools plant tissues
(C)
Imbibition
(D)
Respiration
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Q2.
In Chemistry, examine the topic of Hybridization and molecular geometry of Methane ($CH_4$). Which statement is scientifically accurate?

(A)
sp^2 hybridization with trigonal planar geometry
(B)
sp hybridization with linear geometry
(C)
dsp^2 hybridization with square planar geometry
(D)
sp^3 hybridization with tetrahedral geometry and 109.5^\circ bond angles
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2022 (391 questions)

Q1.
What is 24 minus 11?

(A)
13
(B)
14
(C)
18
(D)
12
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Q2.

मानचित्र ज्ञान: राजस्थान के मानचित्र में 'स्थिरवैद्युत विभव तथा धारिता (Electrostatic Potential & Capacitance)' जिला किस दिशा या संभाग में स्थित है?


(A)
जयपुर, जोधपुर, उदयपुर, बीकानेर या कोटा संभाग का सही स्थान (स्थिरवैद्युत विभव तथा धारिता (Electrostatic Potential & Capacitance))
(B)
दूसरे राज्य में
(C)
दिशा रहित
(D)
इनमें से कोई नहीं
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2021 (398 questions)

Q1.
In Chemistry, examine the topic of Type of chemical bond formed by complete transfer of electrons between atoms of high electronegativity difference. Which statement is scientifically accurate?

(A)
Electrovalent (Ionic) Bond
(B)
Covalent Bond
(C)
Coordinate (Dative) Bond
(D)
Hydrogen Bond
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Q2.
In Chemistry, examine the topic of Le Chatelier's Principle effect of increasing pressure on the equilibrium $N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g)$. Which statement is scientifically accurate?

(A)
No effect on equilibrium position because temperature is constant
(B)
Equilibrium shifts to the left toward more moles of gas
(C)
Equilibrium shifts to the right (forward direction) toward fewer moles of gas
(D)
Equilibrium constant K increases
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2020 (352 questions)

Q1.

पर्यावरण अध्ययन (अपना परिवेश): 'मानव जनन (Human Reproduction - युग्मकजनन, निषेचन)' का हमारे पर्यावरण व स्वास्थ्य से क्या संबंध है?


(A)
पर्यावरण संतुलन, स्वच्छता और जीव-जंतुओं की सुरक्षा (मानव जनन (Human Reproduction - युग्मकजनन, निषेचन))
(B)
प्रदूषण बढ़ाना
(C)
कोई संबंध नहीं
(D)
इनमें से कोई नहीं
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Q2.

जल संरक्षण: राजस्थान में 'प्रत्यावर्ती धारा (Alternating Current - LCR परिपथ, ट्रांसफार्मर)' (बावड़ी, टांका, जोहड़) का क्या महत्व है?


(A)
वर्षा जल संचयन की पारंपरिक एवं वैज्ञानिक तकनीक (प्रत्यावर्ती धारा (Alternating Current - LCR परिपथ, ट्रांसफार्मर))
(B)
पानी व्यर्थ बहाना
(C)
गंदगी फैलाना
(D)
इनमें से कोई नहीं
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2019 (429 questions)

Q1.
In Chemistry, examine the topic of Type of chemical bond formed by complete transfer of electrons between atoms of high electronegativity difference. Which statement is scientifically accurate?

(A)
Electrovalent (Ionic) Bond
(B)
Covalent Bond
(C)
Coordinate (Dative) Bond
(D)
Hydrogen Bond
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Q2.
In Biological Sciences, identify the accurate description regarding Powerhouse of the eukaryotic cell responsible for cellular respiration and ATP synthesis.

(A)
Golgi apparatus, packaging lipids
(B)
Ribosomes, synthesizing proteins
(C)
Lysosomes, digesting cellular debris
(D)
Mitochondria, containing enzymes for the Krebs cycle and oxidative phosphorylation
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2018 (368 questions)

Q1.

गुणा एवं भाग: 'प्रायिकता (Probability - सप्रतिबंध प्रायिकता, बेज़ प्रमेय)' के व्यावहारिक प्रश्न का सही उत्तर क्या होगा?


(A)
पहाड़ों एवं विभाजन नियमों अनुसार सही परिणाम (प्रायिकता (Probability - सप्रतिबंध प्रायिकता, बेज़ प्रमेय))
(B)
अनुमानित गलत उत्तर
(C)
ऋणात्मक मान
(D)
इनमें से कोई नहीं
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Q2.
In Physics, consider the Work-Energy Theorem statement for a particle. Which statement correctly defines this principle?

(A)
Work done is always zero under variable forces
(B)
Work done equals change in potential energy only
(C)
Work done equals rate of change of momentum
(D)
Work done by all forces acting on a particle equals the change in its kinetic energy ($W = \Delta K$)
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2017 (384 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 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.


(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.
In Biological Sciences, identify the accurate description regarding Valve located between the left atrium and left ventricle of the human heart.

(A)
Tricuspid valve
(B)
Pulmonary semilunar valve
(C)
Bicuspid (Mitral) valve, preventing backflow of oxygenated blood during ventricular systole
(D)
Aortic semilunar valve
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2016 (399 questions)

Q1.
What is the sum of 15 and 39?

(A)
54
(B)
55
(C)
53
(D)
64
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Q2.
What is the sum of 32 and 88?

(A)
121
(B)
130
(C)
119
(D)
120
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2015 (359 questions)

Q1.
In Biological Sciences, identify the accurate description regarding Hormone secreted by beta cells of the Islets of Langerhans in the pancreas to lower blood glucose.

(A)
Epinephrine, triggering fight-or-flight response
(B)
Glucagon, promoting glycogenolysis
(C)
Insulin, which facilitates cellular glucose uptake and promotes glycogenesis
(D)
Somatostatin, inhibiting digestive secretions
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Q2.
In Biological Sciences, identify the accurate description regarding Structural and functional filtration unit of the human kidney.

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