Plus 2 Lecturer Mixed Practice Test #141

Question 1

'I will finish the task in no time ___?' (question tag)‌​‍

Accepted Answer

Won't I — 'I will' → negative tag 'won't I?'.‌​‍

Answer

Wouldn't I

Answer

Would I

Answer

Will I

Question 2

In p-block elements: group 15 hydrides stability:‌​‍

Accepted Answer

NH₃ > PH₃ > AsH₃ > SbH₃ > BiH₃ — Bond strength decreases down group. ‌​‍Thermal stability: NH₃ > PH₃ > … Basic nature same trend.

Answer

BiH₃ most stable

Answer

All same

Answer

Reverse

Question 3

Which pair of acids forms 'aqua regia' that dissolves gold?‌​‍

Accepted Answer

Hydrochloric and Nitric — Aqua Regia = 3 parts HCl + 1 part HNO₃ (concentrated).‌​‍

Answer

Nitric and Sulphuric

Answer

Sulphuric and Carbonic

Answer

Hydrochloric and Sulphuric

Question 4

What is the most critical public health concern associated with the improper disposal of hospital biomedical waste?

Accepted Answer

B. Potential for the spread of infectious diseases — Improper disposal of biomedical waste, which often contains pathogenic microorganisms and sharps, presents a significant risk for the transmission of infectious diseases to healthcare workers, waste handlers, and the community. While other options are also negative consequences, disease spread is the most direct and severe public health threat.

Answer

A. Environmental pollution affecting aesthetics

Answer

C. Increased cost of waste management

Answer

D. Attraction of pests like rodents and insects

Question 5

Hard water contains dissolved:

Accepted Answer

Calcium and magnesium salts — Hard water has Ca²⁺/Mg²⁺ from limestone — makes soap less effective, forms scum.

Answer

Sodium salts

Answer

Potassium salts

Answer

Iron oxide

Question 6

The Vizhinjam International Seaport project in Thiruvananthapuram is poised to significantly impact Kerala's maritime trade. Which of the following statements accurately highlights a unique geographical advantage and a primary function of the Vizhinjam port?

Accepted Answer

B. The port's natural depth, close to the coastline, allows for the berthing of mega-container vessels without extensive dredging, positioning it as a transshipment hub. — The Vizhinjam International Seaport's key advantage is its natural depth (around 18-20 meters) very close to the coastline, enabling it to accommodate large mother vessels and mega-container ships with minimal dredging. This unique geographical feature positions it as a major transshipment hub for cargo. Options A, C, and D incorrectly describe its primary function or geographical characteristics.

Answer

A. Its location in a high-tide zone facilitates easy dredging for smaller vessels, primarily serving coastal shipping.

Answer

C. It is designed primarily as an exclusive naval base to enhance India's maritime security in the Arabian Sea.

Answer

D. The project's main objective is to handle only passenger traffic and cruise liners, boosting tourism in the southern districts.

Question 7

Synonym of PRECLUDE:

Accepted Answer

Prevent — Prevent from occurring.

Answer

Include

Answer

Allow

Answer

Permit

Question 8

The National Education Policy (NEP) 2020 places a strong emphasis on Early Childhood Care and Education (ECCE), leading to the development of the National Curriculum Framework for Foundational Stage (NCF-FS) by NCERT. For a teacher working with children in the foundational stage (ages 3-8), what would be the most critical pedagogical shift highlighted by NCF-FS?

Accepted Answer

C. Emphasizing flexible, multi-level, play-based, activity-based, and discovery-based learning methods. — The NCF-FS, based on NEP 2020, aims to transform early childhood education from a rigid, textbook-centric approach to one that is flexible, multi-level, play-based, activity-based, and discovery-based. It emphasizes experiential learning and holistic development for children aged 3-8 years, rather than early formal academics or standardized testing.

Answer

A. Transitioning from a play-based approach to a more rigid, textbook-driven curriculum by Grade 1.

Answer

B. Prioritizing early introduction of abstract concepts in mathematics and science to enhance cognitive abilities.

Answer

D. Implementing standardized written examinations for children as young as 5 years old to track academic progress.

Question 9

'This box is ___ than that one.' (heavy)

Accepted Answer

heavier — Comparative of heavy → heavier (one-syllable ending in consonant-vowel-y).

Answer

heavy

Answer

heaviest

Answer

more heavy

Question 10

The bond in N₂ molecule is a:‌​‍

Accepted Answer

Triple bond — N≡N has a very strong triple bond (945 kJ/mol).‌​‍

Answer

Double bond

Answer

Single bond

Answer

Ionic bond

Plus 2 Lecturer Mixed Practice Test #141