DCOA Mixed Practice Test #119

Question 1

Peaty soil in:‌​‍

Accepted Answer

Kerala Kuttanad, Sundarbans — Waterlogged areas.‌​‍

Answer

UK

Answer

Rajasthan

Answer

Punjab

Question 2

Which of the following factors is most likely to influence an adolescent's decision to engage in risky behaviors like substance use or reckless driving?

Accepted Answer

C. Peer pressure and the need for social acceptance — Adolescents are highly susceptible to peer influence due to their developmental stage, where social acceptance becomes critical. While parental monitoring (A) and prosocial peer groups (B) can reduce risk-taking, the strongest driver of risky behaviors is often peer pressure (C). Option D is unrelated to risk-taking behaviors.

Answer

A. High level of parental monitoring and strict discipline

Answer

B. Presence of a strong peer group with prosocial values

Answer

D. Consistent academic performance and extracurricular involvement

Question 3

New CEC 2025:‌​‍

Accepted Answer

Gyanesh Kumar — Gyanesh Kumar from Feb 2025.‌​‍

Answer

Rajiv Kumar

Answer

Anup Chandra

Answer

Sanjay Mishra

Question 4

Who presided over the Aluva Religious Conference of 1924?‌​‍

Accepted Answer

Sree Narayana Guru — Sree Narayana Guru presided, declaring 'One caste, one religion, one God for man'.‌​‍

Answer

Swami Satyavrathan

Answer

Swami Bodhananda

Answer

Chattampi Swamikal

Question 5

A novel drug compound formulated as an aqueous solution exhibits significant degradation when exposed to light, leading to a visible color change. This type of degradation is primarily due to:

Accepted Answer

C. Photolysis — Photolysis is the chemical decomposition or degradation of a compound caused by exposure to light energy. The observation of a color change upon light exposure is a classic indication of photolytic degradation. Hydrolysis is degradation by water, oxidation by oxygen, and racemization is the interconversion of enantiomers, none of which are primarily triggered by light exposure in this manner.

Answer

A. Hydrolysis

Answer

B. Oxidation

Answer

D. Racemization

Question 6

The first Malayalam novel about social reform in the Nair community was:‌​‍

Accepted Answer

Indulekha — Indulekha (O. ‌​‍Chandu Menon, 1889) depicted progressive ideas in the Nair community including women's education.

Answer

Chemmeen

Answer

Marthanda Varma

Answer

Balyakalasakhi

Question 7

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 8

Withdrawal of protoplasm from the cell wall due to exosmosis is called:‌​‍

Accepted Answer

Plasmolysis — Plasmolysis = shrinking of protoplasm in hypertonic solution.‌​‍

Answer

Pinocytosis

Answer

Diffusion

Answer

Cyclosis

Question 9

KEAM conducted by:‌​‍

Accepted Answer

CEE (Commissioner for Entrance Exams) — CEE under higher education.‌​‍

Answer

University

Answer

KPSC

Answer

Govt

Question 10

The main raw material in the Bosch process for NH₃ is:‌​‍

Accepted Answer

Air (N₂) and natural gas (for H₂) — Haber-Bosch: N₂ (air) + H₂ (from CH₄ steam reforming) → NH₃ (iron catalyst).‌​‍

Answer

Air and water

Answer

Coal only

Answer

Salt

DCOA Mixed Practice Test #119