LGS Mixed Practice Test #414

Question 1

First woman fighter pilot in India:

Accepted Answer

Avani Chaturvedi with batch — Group included Avani, Bhawna Kanth, Mohana Singh.

Answer

Only male

Answer

Just one

Answer

Multiple

Question 2

One word: Long narrative poem on hero:

Accepted Answer

Epic — Epic.

Answer

Lyric

Answer

Sonnet

Answer

Ode

Question 3

The valency of an element is determined by the number of:‌​‍

Accepted Answer

Electrons in the outermost (valence) shell — Valency reflects electrons gained/lost/shared from the outermost shell.‌​‍

Answer

Protons

Answer

Total electrons

Answer

Neutrons

Question 4

The Women's Wall in Kerala was formed in:‌​‍

Accepted Answer

2019 — The Women's Wall (Vanitha Mathil) on 1 January 2019 — ~5.5 million women formed a 620 km human chain.‌​‍

Answer

2017

Answer

2018

Answer

2020

Question 5

A teacher observes that students are struggling to grasp the concept of photosynthesis. According to Vygotsky's theory, which instructional strategy would be most effective to scaffold their learning?

Accepted Answer

B. Collaborating with peers to discuss and construct a model of photosynthesis using provided materials. — Vygotsky emphasized the Zone of Proximal Development (ZPD) and social interaction as key to learning. Option B aligns with this by promoting peer collaboration to construct knowledge, which Vygotsky believed enhances understanding through dialogue and shared activity. Options A and D are teacher-centered and less interactive, while option C lacks scaffolding and peer support.

Answer

A. Providing a pre-made concept map of photosynthesis for students to memorize.

Answer

C. Assigning individual research on photosynthesis with a strict rubric for submission.

Answer

D. Demonstrating photosynthesis through a lecture with detailed slides and notes.

Question 6

Lake Michigan in:‌​‍

Accepted Answer

USA only — Entirely in USA (unique Great Lake).‌​‍

Answer

US-Canada

Answer

Canada

Answer

Mexico

Question 7

Vinegar is acidic because of the presence of:

Accepted Answer

acetic acid — Vinegar contains 4–8% acetic acid (CH₃COOH).

Answer

citric acid

Answer

hydrochloric acid

Answer

tartaric acid

Question 8

During the COVID-19 pandemic, the Kerala Education Department launched the 'FIRST BELL' digital classes. What was its primary mode of delivery to ensure maximum reach among students?

Accepted Answer

B. Primarily via Victers Channel through television and online streaming. — The 'FIRST BELL' digital classes, a crucial initiative by KITE (Kerala Infrastructure and Technology for Education), primarily utilized the Victers educational channel for telecasting lessons through television. This method ensured accessibility to a vast majority of students, including those with limited or no internet access. While online streaming and other digital platforms complemented this, television broadcast was the core delivery mechanism for mass outreach.

Answer

A. Exclusively through dedicated mobile applications requiring high-speed internet.

Answer

C. Distribution of pre-recorded DVD lessons to students' homes.

Answer

D. Live interactive sessions conducted daily by teachers using video conferencing platforms.

Question 9

Aspirin (acetylsalicylic acid) is known to undergo hydrolysis, especially in the presence of moisture and heat. Which of the following products is formed when aspirin undergoes complete hydrolysis?

Accepted Answer

A. Salicylic acid and acetic acid — Aspirin is an ester of salicylic acid and acetic acid. Upon hydrolysis, the ester bond breaks, regenerating the parent carboxylic acid (salicylic acid) and acetic acid. This reaction is responsible for the characteristic vinegar-like smell of old aspirin and is a key degradation pathway.

Answer

B. Acetylsalicylic acid and ethanol

Answer

C. Phenol and benzoic acid

Answer

D. Salicylamide and methanol

Question 10

CNS includes:‌​‍

Accepted Answer

Brain + spinal cord — Central Nervous System.‌​‍

Answer

Peripheral nerves

Answer

Only brain

Answer

Only spine

LGS Mixed Practice Test #414