Plus 2 Lecturer Mixed Practice Test #454

Question 1

National Youth Day is celebrated on:‌​‍

Accepted Answer

12 January — 12 January = National Youth Day (Swami Vivekananda's birthday).‌​‍

Answer

15 January

Answer

26 January

Answer

14 November

Question 2

What was the first compound made from noble gases, which were previously called inert gases?‌​‍

Accepted Answer

XePtF₆ (Bartlett 1962) — Then XeF₂, XeF₄, XeF₆, XeO₃. ‌​‍Only Kr, Xe, Rn compounds known. He, Ne, Ar truly inert.

Answer

He₂

Answer

ArF

Answer

XeF₂

Question 3

Prob of even on dice:

Accepted Answer

1/2 — 3 out of 6 = 1/2.

Answer

1/3

Answer

1/6

Answer

2/3

Question 4

A 12-month-old infant is expected to achieve which of the following fine motor milestones?

Accepted Answer

B. Uses a pincer grasp to pick up small objects — At 12 months, infants typically develop a refined pincer grasp, allowing them to pick up small objects like crumbs. Stacking 2 blocks is usually achieved around 15-18 months, drawing a circle around 3 years, and tying shoelaces much later, around 5-6 years of age.

Answer

A. Stacks 2 blocks

Answer

C. Draws a circle

Answer

D. Ties shoelaces

Question 5

In a remote tribal area of Idukki, Kerala, a community leader observes that the local government primary school consistently lacks a sufficient number of qualified teachers and struggles with inadequate basic sanitation facilities, despite repeated appeals. This situation directly impacts the quality of education for children in the village.

Accepted Answer

B. The State Government, in collaboration with local authorities, is primarily responsible for ensuring that all schools comply with the norms and standards for infrastructure and teacher availability as prescribed by the RTE Act, 2009. — The RTE Act, 2009, explicitly outlines norms and standards for elementary schools, including requirements for adequate infrastructure, functional sanitation facilities, and a prescribed pupil-teacher ratio with qualified teachers. Both the State Government and local authorities share the primary responsibility to ensure that all schools, irrespective of their location, adhere to these standards to provide a conducive learning environment for every child. Relying solely on the PTA or exempting schools from norms due to location are incorrect interpretations of the Act.

Answer

A. The primary responsibility for addressing these issues rests with the local Parent-Teacher Association (PTA) to raise funds and recruit teachers.

Answer

C. The RTE Act, 2009, primarily focuses on ensuring access to education, leaving specific school infrastructure and teacher qualification standards to be decided by district-level education officers.

Answer

D. While teacher availability is a concern, the RTE Act exempts schools in remote tribal areas from stringent infrastructure norms due to geographical challenges.

Question 6

Art 32:‌​‍

Accepted Answer

Constitutional Remedies — 'Heart and soul' of Constitution (Ambedkar).‌​‍

Answer

Right to equality

Answer

Right to freedom

Answer

Against exploitation

Question 7

Miller's magical number (STM capacity):

Accepted Answer

7 ± 2 items — George Miller (1956). Chunking can expand effective capacity. Modern estimates ~4 ± 1 for working memory.

Answer

3

Answer

20

Answer

100

Question 8

pH of pure water:

Accepted Answer

7 — pH 7 = neutral. Below 7 = acidic, above 7 = basic.

Answer

5

Answer

6

Answer

8

Question 9

The Arthashastra was written by:‌​‍

Accepted Answer

Kautilya (Chanakya) — Arthashastra: comprehensive treatise on statecraft, economy, warfare. ‌​‍Rediscovered 1905 by R. Shamasastry. ‌​‍Compared with Machiavelli's 'The Prince.'

Answer

Panini

Answer

Manu

Answer

Patanjali

Question 10

The modern periodic table organizes elements based on increasing atomic number, displaying clear periodic trends in properties. Considering the general trends for atomic radius and electronegativity, which of the following accurately identifies the element expected to have the largest atomic radius and the element expected to have the highest electronegativity among all stable elements?

Accepted Answer

B. Largest Atomic Radius: Francium (Fr); Highest Electronegativity: Fluorine (F). — Atomic radius generally increases down a group and decreases across a period, making Francium (Fr), located at the bottom-left, the element with the largest atomic radius. Electronegativity generally increases across a period and decreases down a group, with Fluorine (F), found at the top-right (excluding noble gases which typically do not have defined electronegativity values), having the highest electronegativity. Options A, C, and D incorrectly identify elements for these extreme properties or misstate the periodic trends.

Answer

A. Largest Atomic Radius: Helium (He); Highest Electronegativity: Francium (Fr).

Answer

C. Largest Atomic Radius: Chlorine (Cl); Highest Electronegativity: Cesium (Cs).

Answer

D. Largest Atomic Radius: Radon (Rn); Highest Electronegativity: Oxygen (O).

Plus 2 Lecturer Mixed Practice Test #454