Plus 2 Lecturer Mixed Practice Test #163

Question 1

Silver chloride decomposes in sunlight producing:

Accepted Answer

Silver and chlorine gas — 2AgCl → 2Ag + Cl₂ on exposure to light; basis of traditional photography.

Answer

Silver oxide

Answer

Only silver

Answer

Only chlorine

Question 2

Which of the following is the primary buffer system in the blood that helps maintain physiological pH?

Accepted Answer

A. Bicarbonate buffer system — The bicarbonate buffer system is the primary buffer in blood due to its high concentration and rapid response to pH changes. Other buffers like hemoglobin and proteins also contribute but are secondary in maintaining systemic pH. The phosphate buffer system is more active in urine and intracellular fluids.

Answer

B. Phosphate buffer system

Answer

C. Protein buffer system

Answer

D. Hemoglobin buffer system

Question 3

The first major Malayalam novel is:‌​‍

Accepted Answer

Indulekha — Indulekha by O. ‌​‍Chandu Menon (1889) is the first widely recognised major Malayalam novel. Kundalatha by Appu Nedungadi (1887) is sometimes cited as earlier.

Answer

Chemmeen

Answer

Marthanda Varma

Answer

Kundalatha

Question 4

G20 African Union:‌​‍

Accepted Answer

Added permanent 2023 — AU permanent member since Delhi 2023.‌​‍

Answer

Observer

Answer

Not member

Answer

Waiting

Question 5

In a constructivist classroom using the 5E model, students are asked to design an experiment to test the effectiveness of different antiseptics on bacterial growth. Which phase of the 5E model does this activity primarily represent?

Accepted Answer

C. Explore — The 'Elaborate' phase involves applying knowledge to new contexts or extending understanding through open-ended tasks. Designing an experiment (Option B) demonstrates higher-order thinking and application, which aligns with this phase. The 'Explore' phase would involve hands-on activities without the complexity of designing a full experiment.

Answer

A. Explain

Answer

B. Elaborate

Answer

D. Evaluate

Question 6

Which of the following is the primary role of the bicarbonate buffer system in human physiology?

Accepted Answer

C. Stabilizing blood pH — The bicarbonate buffer system (H2CO3/HCO3-) is one of the most important buffer systems in the human body, particularly in the blood. Its primary function is to resist changes in blood pH, thus maintaining the narrow physiological pH range essential for enzyme function and overall cellular processes. The other options are regulated by different physiological mechanisms.

Answer

A. Maintaining blood glucose levels

Answer

B. Regulating body temperature

Answer

D. Facilitating nerve impulse transmission

Question 7

Sati abolition pre-Bentinck by:

Accepted Answer

Raja Rammohan Roy — Ram Mohan advocated before 1829 Regulation XVII.

Answer

Vidyasagar

Answer

Brahmo

Answer

All

Question 8

Which part of the brain is primarily responsible for coordinating voluntary movements, balance, and posture?

Accepted Answer

B. Cerebellum — The cerebellum is crucial for fine-tuning motor activity, maintaining balance, and ensuring coordinated movements. While the cerebrum initiates voluntary movements, the cerebellum refines them. The brainstem controls vital involuntary functions, and the thalamus acts as a relay station for sensory information.

Answer

A. Cerebrum

Answer

C. Brainstem

Answer

D. Thalamus

Question 9

Michel Foucault analysed:‌​‍

Accepted Answer

Power, discourse, knowledge, surveillance — Foucault: power operates through discourses, disciplinary institutions (prisons, schools, hospitals). ‌​‍'Panopticon' as metaphor for modern surveillance.

Answer

Mathematics

Answer

Physics

Answer

Pure economics

Question 10

71st National Film Awards (Aug 2025) — which is INCORRECT? ‌​‍(i) '12th Fail' won Best Feature Film (ii) Shah Rukh Khan & Vikrant Massey shared Best Actor (iii) 'Ullozhukku' by Christo Tomy won Best Malayalam Film (iv) Vijayaraghavan won Best Supporting Actor for Ullozhukku

Accepted Answer

(iv) only — Vijayaraghavan won Best Actor (leading role) for 'Pookkaalam', not Best Supporting Role.‌​‍

Answer

(i) and (iii)

Answer

(iii) and (iv)

Answer

(iii) only

Plus 2 Lecturer Mixed Practice Test #163