Maharashtra Board - Class 11 (FYJC) previous year questions (PYQ)

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

Assertion (A): Gastric enzyme pepsin requires an acidic environment to digest dietary proteins.

Reason (R): Hydrochloric acid secreted by parietal cells creates optimum pH (1.5 to 2.0) and cleaves inactive pepsinogen into active pepsin.

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

Assertion (A): Systemic arteries have thick, elastic muscular walls compared to veins.

Reason (R): Arterial blood flows under high, pulsatile hydrostatic pressure generated by ventricular systole.

Refer to the Case Study 'Case Study: Recombinant Human Insulin Synthesis in Modern Biotechnology' to answer:

Why is human insulin synthesized via recombinant DNA technology superior to animal-derived insulin?

Which scientific law or classification system governs 'Systematics of Living Organisms: Five Kingdom System'?

Which scientific law or classification system governs 'Thermal Properties of Matter: Heat Expansion, Calorimetry, Heat Transfer (Conduction, Convection, Radiation)'?

How do we troubleshoot or verify a problem involving 'Thermal Properties of Matter: Heat Expansion, Calorimetry, Heat Transfer (Conduction, Convection, Radiation)'?

What is the fundamental mathematical definition of 'Sequences and Series: AP, GP, HP and AGP' in Balbharati Class (FYJC)?

Which standard unit or property is applied when calculating 'Sequences and Series: AP, GP, HP and AGP'?

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

Assertion (A): Systemic arteries have thick, elastic muscular walls compared to veins.

Reason (R): Arterial blood flows under high, pulsatile hydrostatic pressure generated by ventricular systole.

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

Assertion (A): If two linear equations represent coincident lines, the system has infinitely many solutions.

Reason (R): Two lines $a_1x + b_1y + c_1 = 0$ and $a_2x + b_2y + c_2 = 0$ coincide when $\frac{a_1}{a_2} = \frac{b_1}{b_2} = \frac{c_1}{c_2}$.

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.

Refer to the Case Study 'Case Study: Optical Fibers and Total Internal Reflection in Medical Endoscopy' to answer:

In clinical medicine, why are coherent fiber bundles used in flexible endoscopes rather than non-coherent bundles?

What is the cause-and-effect relationship established under 'Basic Principles and Techniques of Organic Chemistry: IUPAC Nomenclature, Isomerism, Reaction Mechanisms'?

If a student solves a textbook problem on 'Angle and Its Measurement: Radians and Degrees', which step is essential?

What is the cause-and-effect relationship established under 'Skeleton and Locomotion: Bones and Joints'?

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?

Refer to the Case Study 'Case Study: The Chlor-Alkali Electrochemical Process in Chemical Industry' to answer:

What reaction occurs at the cathode during brine electrolysis?

Which observation or experiment demonstrates 'Basic Principles and Techniques of Organic Chemistry: IUPAC Nomenclature, Isomerism, Reaction Mechanisms' in school laboratories?

What is the cause-and-effect relationship established under 'Photosynthesis: Light and Dark Reactions'?

In 'Part 2 (Calculus & Algebra)', how does 'Continuity: Point Continuity and Discontinuity' relate to practical everyday life?

Which scientific law or classification system governs 'Hydrocarbons: Alkanes, Alkenes, Alkynes, Aromatic Hydrocarbons (Benzene)'?

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.

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

Determine the parameter $c$ in the parabolic equation $y = ax^2 + c$ from the vertex information.

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.