EMRS PGT Chemistry Mock Test - 8 - EMRS MCQ

The Venn diagram that best represents the relationship between Mammals, Whale, and Elephant is shown below:

Whale and Elephant belong to the class Mammal.

Elephants are the largest land mammals on earth and have distinctly massive bodies, large ears, and long trunks.

Hence, ‘Option 1’ is the correct answer.

Hence, "Printer" is the correct answer.

Important PointsInput Device: A piece of equipment/hardware that helps us enter data into a computer is called an input device. For example keyboard, mouse, etc. 

1. Keyboard:

• A simple device comprising keys and each key denotes either an alphabet, number, or number commands which can be given to a computer for various actions to be performed
• It has a modified version of typewriter keys
• The keyboard is an essential input device and computers and laptops both use keyboards to give commands to the computer

2. Joy Stick:

• It is a device that comprises a stick that is attached at an angle to the base so that it can be moved and controlled
• Mostly used to control the movement in video games
• Apart from a computer system, a joystick is also used in the cockpit of an aeroplane, wheelchairs, cranes, trucks, etc. to operate them well

3. Scanner:

• This device can scan images or text and convert it into a digital signal
• When we place any piece of a document on a scanner, it converts it into a digital signal and displays it on the computer screen

Output Device: A piece of equipment/hardware that gives out the result of the entered input, once it is processed (i.e. converts data from machine language to a human-understandable language), is called an output device. For example printers, monitors, etc. 

Printer:

• A device that makes a copy of the pictorial or textual content, usually over a paper is called a printer
• For example, an author types the entire book on his/her computer and later gets a printout of it, which is in the form of paper and is later published
• Multiple types of printers are also available in the market, which can serve different purposes

Bredig's arc method is a method of preparation of the colidal solution of metals such as silver, gold, platinum etc. Copper sol is not prepared using Bredig's arc method.

Born Haber cycle involves

(a) CO (14e), no unpaired electron, magnetic moment = 0
CO⁺ (13e), One electron is lost from bonding melecular orbital unpaired electron = 1, magnetic moment =
(b)  (15e) Unpaired electron = 1, magnetic moment =
(13e) Unpaired electron = 1, magnetic moment =
(c) Zn, Zn²⁺, unpaired electron = 0
(d) O₂ (16e), unpaired electron = 2, magnetic moment =
, unpaired electron = 1, magnetic moment =

(a.c.d) Regardlessvehether a cell is a volatic or an electrolysis cell, anode s the electrode at which oxidation takes place and cathode is the electrode at which reduction takes place. In electrochemical cell, Zn → Zn²⁺ + 2e^- .

It is losing electrons thus, anode is negative terminal. In electrolysis cell. cation migrates to cathode thus -ye terminal. anion migrates to anode thus +ve terminal. 

The correct answer is option  D.
Milk is an emulsion with fat particles (globules) dispersed in an aqueous (watery) environment. The fat globules do not coalesce and form a separate layer (oil off or churn) because they are protected by a membrane layer which keeps the fat particles separate from the water phase.

Fluorine has highest electronegativity among all known elements, so it shows only negative oxidation states.

Precipitation of AgCl is an example of instantaneous reaction.

Lyophilic colloids have a unique property of protecting lyophobic colloids. When a lyophilic sol is added to the lyophobic sol, the lyophilic particles form a layer around lyophobic particles and thus protect the latter from electrolytes. Lyophilic colloids use for this purpose are called protective colloids.

B is an alcohol formed by the attack of Grignard's reagent on acetone. Hence, alcohol must have the skeleton


Also, R is C₇H₁₁ with two degree of unsaturation it must be cyclohexenyl methyl not cyclohexyl methyl.

The basicity decreases from Ce(OH)₃ to Lu(OH)₃. Due to lanthanide contraction, the decrease in the size of the cation increases the covalent character between the lanthanide ion and hydroxide ion thereby, reducing the basic character of the lanthanide hydroxide.

The configuration in a compound is independent of its physical properties (optical activity)

Constant Temperature means isotherm.

30% of hydrogen peroxide is called Perhydrol, which is used as an antiseptic and germicide for washing wounds, teeth, and ears. The volume strength of Perhydrol is hundred and its molarity is given by 8.8

Group 15 doping on group 14 element forms n type semiconductor due to excess electrons.

The correct answer is option C

Ce exist in the oxidation state other than +3 .

(a) B - Boron has +1 and +3 oxidation state.

(b) Al - Aluminium has +1,+2 and +3 oxidation state.

(c) Ce - Cerium has +3 and +4 oxidation state.

(d) Ga - Gallium has +1 and +3 oxidation state.

Cerium (Ce) have [Xe] 4f²6s² electronic configuration.

In simpler words, after a certain period of time , Hydrogen is completely adsorbed on tungsten metal such that its surface becomes completely concentrated with Hydrogen thus the reaction becomes independent of concentration. a rxn independent of concentration is 0 order.

The statement "Children actively construct their understanding of the world" was said by Piaget. Piaget saw the kid as constantly creating and re-creating his own model of reality, achieving mental growth by integrating simpler concepts into higher-level concepts at each stage. He argued for a “genetic epistemology,” a timetable established naturally for the event of the child’s ability to think, and he traced four stages therein development. Hence, the correct answer is, 'Piaget.'

Non-discursive communication refers to any form of communication that does not involve the use of words or language.

• Speaking involves the use of words or language to communicate, which is the opposite of non-discursive communication.
• Non-discursive communication includes forms of communication that do not involve the use of words, such as facial expressions, body language, gestures, and silence.
• It is an important aspect of human communication and can play a significant role in how we interact with others and convey meaning and emotion.

Thus, it is concluded that Speaking is NOT a form of non-discursive communication.

The national education policy 2020 is the first education policy of the 21st century and aims to address the many growing development imperatives of our country. This policy progress the revision and revamping of all aspects of the education structure, including its regulation and governance, to create a new system that is aligned with the aspirational goals of 21st-century education and improve the quality of the education system.
Key Points 

The curriculum framework for adult education will include at least five types of programes:-

• foundational literacy and numeracy
• critical life skills (including financial literacy, digital literacy, commercial skills, health care and awareness, child care and education, and family welfare)
• vocational skills development (with a view towards obtaining local employment)
• basic education (including preparatory, middle, and secondary stage equivalency)
• continuing education (including engaging holistic adult education courses in arts, sciences, technology, culture, sports, and recreation, as well as other topics of interest or use to local learners, such as more advanced material on critical life skills).

Thus it is clear that the purpose of new education policy is to improve the quality of the education system.

According to NEP 2020, A good educational institution is one in which every student feels welcomed and cared for, where a safe and stimulating learning environment exists, where a wide range of learning experiences are offered, and where good physical infrastructure and appropriate resources conducive to learning are available to all students.

Key Points 

 Some important fundamental principles of the NEP 2020 are- 

• Full equity and inclusion as the cornerstone of all educational decisions to ensure that all students are able to thrive in the education system.
• The 360-degree holistic report reflects in great detail the progress as well as the uniqueness of each learner in the cognitive, affective, and psychomotor domains.
• Emphasis on conceptual understanding rather than rote learning and learning-for-exams.
• Promoting self-assessment and the peer assessment done by the student in the classroom.
• Learning how to learn:- The main goal of the school education regulatory system must be to improve educational outcomes so that children can implement the acquired knowledge and skills in real life.
• Respect for diversity and respect for the local context in all curriculum, pedagogy, and policy, always keeping in mind that education is a concurrent subject.
• Learning should be done in various methods, and teachers should focus on conceptual learning in a meaningful way.
• Establishment of the linkage of the concepts with the environment or we can say that the linkage of the school with the home.
• Promoting multilingualism and the power of language in teaching and learning.
• It emphasizes group work as well as individual work, NEP 2020 links the study to the curriculum.
• So by all these references, a 360-degree holistic progress report card, and learning how to learn are the key features of the NEP 2020.

Hint

• Course content should not increases according to the NEP 2020, the learning of the lessons are done in different methods such as hands-on activities, and experimental way of learning.
• The curriculum should be flexible did not standardized.

All languages will be taught with high quality to all students; a language does not need to be the medium of instruction for it to be taught and learned well. The teaching of all languages will be enhanced through innovative and experiential methods, including through gamification and apps, by weaving in the cultural aspects of the languages - such as films, theatre, storytelling, poetry, and music - and by drawing connections with various relevant subjects and with real-life experiences.

Key Points

•  In addition to high-quality offerings in Indian languages and English, foreign languages, such as Korean, Japanese, Thai, French, German, Spanish, Portuguese, and Russian, will also be offered at the secondary level, for students to learn about the cultures of the world and to enrich their global knowledge and mobility according to their own interests and aspirations.
• It can be studied as an additional option.

Thus, it is concluded that National Education Policy (NEP) 2020 recommends the study of foreign languages as additional options at the secondary stage.

Here’s the solution with a detailed explanation:

Sentence: Each one of the government hospitals are full at this point of time.

Error Identification:

• The phrase "Each one of the government hospitals" uses "each" as a singular subject. Therefore, the verb that follows should also be singular.

Correct Version:

• It should be: "Each one of the government hospitals is full at this point of time."

Explanation:

• "Each one" indicates that we are talking about individual items (in this case, hospitals), so it requires a singular verb ("is" instead of "are").

Final Answer:

• The error is in part 2.

सही उत्तर "सामने" है।

• दिए गए विकल्पों में, 'सामने' शब्द 'समुच्चयबोधक अव्यय' नहीं है।
• 'सामने' शब्द 'सम्बन्धबोधक अव्यय' है।
• अन्य उदाहरण:

Key Points

• वे शब्द जिनमे लिंग, कारक, वचन, पुरुष आदि के कारण कोई विकार/ परिवर्तन उत्पन्न नहीं होता है, अव्यय शब्द कहलाते है।
• जैसे – आज, कब, इधर, किन्तु आदि।
• अव्यय के पांच भेद हैं –

सही उत्तर "यहाँ" है।

• दिए गए विकल्पों में, 'यहाँ' शब्द 'समुच्चयबोधक अव्यय' नहीं है।
• 'यहाँ' शब्द 'क्रिया-विशेषण अव्यय' है।
• वे शब्द दो या दो से अधिक शब्दों या वाक्यों को जोड़ने का काम करते हैं, वे समुच्चयबोधक शब्द कहलाते हैं।
• जैसे: और, व, एवं, तथा, या, अथवा, किन्तु, परन्तु, कि, क्योंकि, जो कि, हालाँकि, लेकिन, अत:, इसलिए आदि।

Key Pointsअन्य उदाहरण:

Additional Information

• वे शब्द जिनमे लिंग, कारक, वचन, पुरुष आदि के कारण कोई विकार/ परिवर्तन उत्पन्न नहीं होता है, अव्यय शब्द कहलाते है।
• जैसे – आज, कब, इधर, किन्तु आदि।
• अव्यय के पांच भेद हैं –

• किसी भी बात पर अतिरिक्त भार देने के लिए जिन शब्दों का प्रयोग किया जाता है उसे निपात कहते है।
• जो अव्यय किसी शब्द के बाद लगकर उसके अर्थ को बल प्रदान करते हैं, वे निपात कहलाते हैं।
• निपात को अवधारक भी कहते हैं।
• निपात किसी बात पर जोर देने के लिए प्रयोग किये जाते हैं।

निपात के उदाहरण

• हमने ही यह कार्य पूरा किया है ।
• कल मेरा मित्र भी आएगा।

Additional Information

• बात अपने तक ही रखना।
• ही निपात है।
• तुम भी कल चले आओ।
• भी निपात है।
• शिक्षा केवल साधन है
• केवल निपात है।