KVS PGT Chemistry Mock Test - 5 - KVS PGT/TGT/PRT MCQ

सही उत्तर है - "सभी-शैव" lKey Points

• सर्व का अर्थ है - सभी l
• शर्व का अर्थ है - शैव l
• इसलिए यह सही उत्तर है l

अन्य विकल्पों का विश्लेषण:-

• शव शब्द का अर्थ है - मृतक का शरीर, लाश l
• सही का अर्थ है - ठीक l
• शाकाहारी का अर्थ है - वह जो बस वनस्पति खाता है l
• इन तीनों शब्द जोड़ों में एक- एक शब्द का अलग अर्थ है, इसलिए यह तीनों प्रश्न में दिए गए शब्द- युग्म के सही अर्थ को नहीं बताते l

Additional Information

• सर्व-शर्व यह दोनों श्रुतिसम भिन्नार्थक शब्दों के उदाहरण है जो सुनने में एक जैसे लगते हैं, और वर्तनी में भी कुछ सामान ही होते हैं, लेकिन इनके अर्थ बिल्कुल अलग-अलग होते हैं l
• ऐसे कुछ शब्दों के उदाहरण:-
• चर्म- चमड़ा
  • चरम- अत्यधिक
• हय- घोड़ा
  • हिय- हृदय
• श्रवण- सुनना, कान
  • श्रमण- बौद्ध संन्यासी

दिए गए विकल्पों में सही उत्तर विकल्प 1 ‘घड़ा’ है। अन्य सभी विकल्प इसके अनुचित उत्तर होंगे।

Key Points

• दिए गए विकल्पों में घन का अनेकार्थी शब्द 'घड़ा' नहीं है।
• घड़ा के अनेकार्थी शब्द हैं- घट, शरीर, हृदय, कम।
• घड़ा के पर्यायवाची शब्द हैं- गगरा, घट, कुभ, कलश।

Explanation:

• Evolutionary biology: It is a field of science that deals with the study of evolutionary processes like natural selection, speciation & common descent that has led to the diversification of life on earth.
• Charles Darwin is known as the father of ''Evolutionary Biology''.
• Darwin proposed a theory of evolution called natural selection in the year 1859. According to it those populations which are a better fit (reproductively fit) in an environment will be selected by nature and will survive more.
• Charles Darwin wrote a book named ''The origin of species'' which is considered to be the foundation of evolutionary biology.

Additional Information 

• Herbert Spencer- He Was best known for the introduction and application of evolutionary theory to philosophy, psychology, and social sciences
• The famous phrase 'Survival of the fittest' to mean Natural Selection was coined by Herbert Spencer. He originated this phrase after the publication of famous biologist Charles Darwin’s book ‘Origin of Species’ which talked about ‘Natural Selection’.
• Julian Huxley was an English biologist, philosopher, educator, and author who greatly influenced the modern development of embryology, systematics, and studies of behaviour and evolution.
• Stanley Miller along with H.C. Urey provided experimental evidence of ''chemical evolution''

Key Points

In 1854, the first cotton mill was set up in Bombay and It grew as an important port for the export of raw cotton from India to England and China.

• This cotton crop became a huge demand and farmers started investing in it.
• Cotton turned the market upside down.
• A huge number of labours started working in mills.
• In Bombay, about 84 mills were established by Parsi and Gujarati businessmen by 1900.
• The construction and development of mills in cities started and the first mill in Ahmedabad was started in 1861.
• The growth of cotton mills demanded manpower.
• Poor peasants, artisans, and agricultural labourers started working in the mills.
• The textile industry of India faced problems such as difficulty competing with the cheap textiles imported from Britain.
• In most countries, the government-supported industrialization by applying and imposing heavy duties on imports which eliminated competition and protected infant industries.
• The first major spurt in the development of cotton factory production in India was during the First World War when textile imports from Britain were declined and Indian factories were called upon to produce cloth for military supplies.

The correct answer is ​Prohibition of employment of children in factories and mines.

Key Points

• RIGHT AGAINST EXPLOITATION : (Asked in UPSC Prelims 2017)
  • Prohibition of Traffic in Human Beings and Forced Labour
    • Article 23 prohibits traffic in human beings, begar (forced labour), and other similar forms of forced labour.
    • Any contravention of this provision shall be an offence punishable in accordance with the law.
    • This right is available to both citizens and non-citizens.
    • It protects the individual not only against the State but also against private persons.
    • The expression ‘traffic in human beings’ include
      • Selling and buying of men, women, and children like goods
      • Immoral traffic in women and children, including prostitution 
      • Devadasis
      • Slavery.
    • To punish these acts, the Parliament has made the Immoral Traffic (Prevention) Act, 1956.
    • The term ‘begar’ means compulsory work without remuneration.
    • It was a peculiar Indian system under which the local zamindars sometimes used to force their tenants to render services without any payment.
    • In addition to begar, Article 23 prohibits other ‘similar forms of forced labor’ like ‘bonded labor’.
      • The term ‘forced labor’ means compelling a person to work against his will.
  • Prohibition of Employment of Children in Factories 
    • Article 24 prohibits the employment of children below the age of 14 years in any factory, mine, or other hazardous activities like construction work or railway.
      • But it does not prohibit their employment in any harmless or innocent work.

The first figure is a triangle, then there are 3 line segments inside it.

Similarly,

Circle, then there should be 3 line segments inside it.

The figure is shown below:-

Hence, Option (2) is the correct answer.

By using the symbols in the table given below, we can draw the following family tree:

Clearly, C is the grandchild of A.

Hence, ‘Grandchild’ is the correct answer.

Office Open XML (OOXML) format was introduced with Microsoft Office 2007 and became the default format of Microsoft Word ever since. Pertaining file extensions include: . docx – Word document.

Human behavior has a dynamic quality, it keeps changing in response to various stimuli it receives from the environment. From infancy, we are continually learning new skills, gaining information about the environment around us, and developing certain beliefs and attitudes. These are the area or domains of learning.

Key Points

Psycho-motor domain is also called the conative domain of learning.

• Psycho-motor domain pertains to the manipulative or psychomotor skills which can be developed under the supervision or guidance of an expert or skilled person.
• For example, the skill of driving a car can be acquired effectively under the direct supervision of a skilled instructor
• Learning psychomotor skills has three characteristics. They are:
  • Responsive chain: Learning of skills involves a chain of motor responses that one muscular movement leads to another muscular movement.
  • Coordination: The coordination of perception and motor acts is essential in skill learning.
  • Response patterns: Skill learning involves the organization of stimulus ad response patterns.

Hence, we can conclude that the Psycho-motor domain is also called as the conative domain of learning.

The main function of SMC is to prepare School Development Plan (SDP) as per the RTE Act guidelines/ norms under Section 22 to monitor the utilization of government grants and funds along with the whole school environment.

Key Points

• The main aim of preparing the School Development Plan is to identify and review the strength and weaknesses of the school.
• Each school development plan is prepared to keep in view the targets for the next 2 years based on a consultative process.
• As per the rules, SMC is responsible to prepare a school development Plan that comprises sub-plans of 3 years.
• The School Development Plan is prepared at least three months before the end of the financial year.

Hence we can say that the SMC  is responsible to prepare a school development Plan that comprises sub-plans of 3 years.

Additional Information The School development plan includes -

• Estimation of class-wise enrolment for each year.
• As per the estimated enrolment of students, the required number of additional teachers (subject and grade wise) including part-time teachers.
• Estimation of additional infrastructure and equipment.
• Additional financial requirements.
• Required additional support and training for teachers and students.

A curriculum is a set of predetermined actions that are intended to carry out a certain educational goal. It comprises assertions of the selection criteria for the topic to be taught, as well as decisions about the techniques, resources, and assessment to be used. Key Points

• The terms explicit curriculum and intended curriculum are also used to describe overt curriculum.
• This covers all the extracurricular and co-curricular activities that the school, college, or university organization has purposefully designed to be given to the students.
• It contains information that learners are explicit to be given, including knowledge, skills, attitudes, and values. An overt curriculum is created with the school system's aims and objectives in mind.
• As a result, it is limited to written understandings that have been explicitly created by curriculum designers and administrators.

Hence, it is concluded that Overt curriculum is also known as explicit and intended curriculum.

From prehistoric time experts has been trying to understand and explain leadership, however, differences in opinion and isolated ideas failed to demonstrated a comprehensive process of leadership that make an ordinary person leader or an ordinary leader an effective leader.

Key Points

The comprehensive leadership model tries to portray a complete leadership that integrates all the isolated opinions of experts that can be generalized in a different perspective.

Leadership is a comprehensive process which understood as the ability some people have to guide or command other people's actions. It is more than just that, though. A comprehensive leader is a dominating individual and supporting group of people.

• Leader knows himself quite well, both his weaknesses and strong points.
• Leader summons for personality, not by fear.
• Leader is supported by strong background knowledge.
• Leader makes use of strong common sense.
• Leader exchanges some ideas among the group and also direct them about their goals and help them to achieve them.
• Leader has a personal relationship with any and all of his followers.
• Leader knows how to make use of his people's strengths and weaknesses to achieve the goals they had in mind.
• Leader serves others in the achievement of the objectives, and not the other way round.

Social development refers to the way a child learns to interact with others and develop social relationships with others.

Key Points

• It deals with her social context, which includes her parents, siblings, peers, neighbors, teachers, and relatives, and the influence of these on the attitude of the child.
• It involves the interpersonal relationships of an individual, her acquired social skills, and values, and the ways in which an individual adjusts to society.
• The more social exposure a child gets through his social environment, the more the rate of social development.

In a joint family, a child gets to interact with many individuals in his family, so the pace of social development is rapid.

Additional Information

• The social development of a child involves the interpersonal relationships of an individual, her acquired social skills, and values, and the ways in which an individual adjusts to society.
• The child learns to accept others and their points of view and also to work in a group.
• They learn qualities such as sharing, cooperation, waiting for one’s turn, and respecting other people and things.

The Ministry of Women and Child Development formulated a comprehensive training strategy for different functionaries of ICDS such as Anganwadi Workers, Supervisors, Child Development Project Officers, Medical Officers, Paramedical Staff, etc.

Important Points

The ECCE functionary who provides ICDS services at Anganwadi Centre is known as Anganwadi Worker.

• Services in the Anganwadi center, which runs with the help of the Anganwadi worker.
• The Anganwadi worker assists the health functionaries in the coverage of the target population for immunization.
• She helps in the organization of fixed day immunization sessions, which now have become "Mother-Child Protection Days".
• She maintains immunization records of ICDS beneficiaries and follows up to ensure full coverage. 
• The Anganwadi worker is assisted by a helper in the implementation of the program.
• The activities at the center are supervised by a supervisor who reports to the Child Development Project Officer who is overall in charge of the implementation of the program in the community development block.

Hence, we can conclude that The ECCE functionary who provides ICDS services at Anganwadi Centre is known as Anganwadi Worker.

(II) is most reactive as it forms aromatic carbocation (III) is next most reactive as it forms allylic carbocation. (I) is least reactive as it forms least stable cyclopropyl carbocation.

Wolff-Kishner reduction is suitable for reduction of carbonyls containing olefinic bonds. If Clemmensen reduction is done, HCI also attacks olefinic bonds.

Enthalpy of vaporization is defined for a substance when one mole of the substance is converted into the gaseous state. To obtain the enthalpy of vaporization of H₂O liquid we will add reaction 1 and reaction 2 and then divide the enthalpy of x to since we need to calculate the enthalpy of vaporization for single mole of H₂O

Option A: Cu + 2H_2​SO_4​ → CuSO₄​ + SO₂​ + 2H₂​O
Option B: S + 2H₂SO₄ → 2SO₂ +2H₂O
Option C: C + 2H₂SO₄ → CO₂ + 2SO₂ + 2H₂O
Option D: Zn + 2H₂SO₄ → ZnSO₄ + SO₂ + 2H₂O

Hence, option C is correct.

The correct answer is Option D.
Only primary amines liberate nitrogen gas on reaction with HNO2.

Solids form closed packed structure with negligible intermolecular space. So, they do not change their shape in presence of external pressure. Liquids have very less intermolecular spaces so even they are resistant to external pressure and does not change their shape hence are incompressible.

Note: Due to less intermolecular force of attraction, they acquire the shape of the container in which they are kept. The volume of the liquid doesn't change with pressure. Thus making them practically incompressible.

The three elements Potassium, Phosphorus and Nitrogen are the most essential elements without which plants can’t thrive hence C is correct.

The correct answer is option A
Reduction with LiAlH₄

 

• The point at which the atoms may be present on the unit cell is termed as lattice point.
• It shows the position of atoms in the crystal.

The correct answer is Option A.

Radial nodes = (n - l - 1)
Angular nodes = l, total nodes = (n - 1), nodal plane = l

Let, oxidation number of Fe = x

Residence time of methane in the atmosphere is 3 - 7 years

Energy of ethene =x₁
Number of ethene in benzene=3.
Therefore, Observed energy of hydrogenation of benzene =3x₁
Calculated energy of hydrogenation of benzene =x₂ (Given)
Therefore, 
Resonance energy = observed - calculated =3x₁−x₂

Replacement of diazo group by other group is helpful in preparing compounds which are not/ cannot be produced by direct nucleophilic substitution reaction.This is because,to substitute in aromatic ring, the nucleophilic should leave the partial double bond, which is more energy required than in haloalkane.