NVS PGT Chemistry Mock Test - 3 - NVS TGT/PGT MCQ

The correct answer is Gamma Rays.

Key Points

• Gamma rays have the shortest wavelength and highest frequency (energy) in the electromagnetic spectrum.
• They are electromagnetic waves with wavelengths in the range of 10^-12m and frequencies around 10²⁰- 10²⁴ Hz.
• They have a high penetrating power.
• They are a result of decaying radioactive material and can also be found in outer space.
• They are used in medical applications for sterilisation of equipment and cancer treatment.

Additional Information

•  Other radiations in the Electromagnetic spectrum are:

The correct answer is The Commission for Agricultural Costs and Prices.

• Based on the recommendations of the Commission for Agricultural Costs and Prices, the Department of Agriculture and Co-operation, Government of India, declares Minimum Support Prices (MSP) for 22 crops before their sowing seasons.

Key Points

• The CACP is an attached office of the Ministry of Agriculture and Farmers Welfare, formed in 1965.
• It is a statutory body that offers separate reports recommending prices for Kharif and Rabi seasons.

Additional Information

• Cost of farming at three levels:
  • A2: All the types of cash expenditure to create the crop like seeds, manure, chemicals, labour costs, fuel costs and irrigation costs.
  • A2+FL: It includes A2 plus an imputed value of unpaid family labour.
  • C2: Under C2, the estimated land rent and the cost of interest on the money taken for farming are added to A2 and FL.
• On 18^th November 2004, the Union government formed the National Commission on Farmers (NCF) with MS Swaminathan as its chairman.
• The main purpose of the committee was to come up with a sustainable farming system, make farm commodities cost-competitive and more profitable.

The correct answer is the Quasi-Judicial Procedure.

Important Points

• The procedure of Impeachment of the President of India is the Quasi-Judicial Procedure.
• The procedure begins with the introduction of a bill in either house of Parliament.
• The only condition for the initiation of the impeachment of the Indian president is the ‘violation of the constitution.
• None of the presidents of India has faced impeachment so far.
• A quasi-judicial body is an organ of Government other than a Court or Legislature, which affects the rights of private parties either through adjudication or rulemaking”.
• It is not mandatory that a Quasi-Judicial Body has to necessarily be an organization resembling a Court of Law.
  • For example, the Election Commission of India is also a Quasi-Judicial Body but does not have its core functions as a Court of Law.
• Some examples of Quasi-Judicial Bodies in India are the Election Commission of India, the National Green Tribunal, and the Central Information Commission (CIC).

Key Points

• Process of Impeachment of the President of India:
  • When a President is to be impeached for violation of the Constitution, the charge shall be preferred by either House of Parliament.
  • For the motion to be valid, it must be signed by at least one-fourth of the total members of the house where it is introduced
  • In the case of the Lok Sabha, this means that the motion must be signed by at least one-fourth of the total Lok Sabha members.
  • A 14-day notice is given to the President of India.
  • Then, Lok Sabha passes the impeachment charges with a two-thirds majority and sends it to Rajya Sabha.
  • Then, the Rajya Sabha investigates the charges.
  • While Rajya Sabha is investigating the charges, the President has the right to sit in the proceedings.
  • Rajya Sabha agrees to the charges and passes it with a two-thirds majority and the President is removed.

The correct order of the ranks in the Indian Defence Forces in ascending order is:

4. Lieutenant

3. Colonel

2. Brigadier

1. Lieutenant General

5. Field Marshal

Hence, the correct answer is 4, 3, 2, 1, 5.

Additional Information 

The top three ranks of the Indian Defence forces are as follows : 

The triangle 6 shown in figure and another is ADB,ACB, BDC,ADC, so that total number of triangle is 10

‘Knife’ is related to ‘Cut’, means we use knife for cutting.

Similarly,

We use pen for writing.

Hence, Write is the correct answer.

Information and communication technology (ICT) refers to the use of electronic technology to send save, create, display, share or exchange information. Radio, television, video, DVD, satellite systems, computers, etc. are included in the ICT technologies.

• The tools of ICT are not a single technology but a combination of hardware, software, multimedia, and delivery systems. It may be in the form of audio, visual, and audio-visual. 

Key Point

Advantages of ICT Tools:

• Cost efficient - ICT tools are cost efficient as sending an email is cheaper than phone calls. ICT has also helped to automate business practices, thus restructuring businesses to make them exceptionally cost-effective. ICT tools make availability of free e-contents.
• ICT as Auido-Visual aid - A teacher can use ICT tools as teaching aids to stimulate the interest of students in learning. For example, a teacher who is going to introduce adjectives to class Ist students. He can use graphics, visual presentation, and audio-visual aids to make classroom learning interesting.
• Direct classroom learning: ICT tools are used in direct classroom learning as these tools shift the learning from solitary learning to learning with others. It makes learning more active in nature as there is direct interaction of the learner with ICT tools. It places the learner at the center and encourages collaborative learning in the classroom.

Hint

• Reliance on technology: Errors can be caused by over-reliance on and trust in technology’s proper function. Technology can occasionally malfunction, misdirect users, or give incorrect information or recommendations that result in users changing a previously correct decision or following a pathway that leads to error. Over-reliance on technology can result in serious consequences.

Hence, it is clear that reliance on technology is not an advantage of ICT tools.

Communicating information effectively by making use of appropriate technology is called Information and Communication Technology (ICT).

• It is an umbrella term that includes many communication devices such as radio, television, cellular phones, computers and network, satellite systems and so on.
• It is defined, as a “diverse set of technological tools and resources used to communicate, and to create, disseminate, store, and manage information."

Important Points

Two objectives of ICT are:

• To establish smart schools
  • ICT allows schools to use advanced technology and equipment in classrooms to give students a better learning experience.
  • These schools use gadgets such as laptops, teaching screens, and projectors to add a visual effect to learning.
• To increase the capacity of teachers
  • The concept of capacity building in education includes various aspects ranging from training teachers, developing the digital contents, implementing basic ICT infrastructure (computers and networking) and putting in place well-designed local ICT policies.
  • It helps teachers to interact with students.
  • It helps them in preparing their teaching, provide feedback.

Thus, it is clear that the objective of ICT is to establish smart schools and to increase the capacity of teachers.

Additional Information

Advantages of using ICT in education: 

• It is of great use in achieving various objectives of the teaching-learning process.
• It provides correct information in a comprehensive manner with different examples.
• It helps learners to broaden their information base.
• It provides variety in the presentation of content, which helps learners to learn according to their own pace.
• It helps in better understanding and long retention of information.

IT and ICTs are very often interchangeably used in the context of modern technology infrastructure. ICT is a broad and comprehensive term, which comprises information technology and communication technology. Information technology includes radio, television, computer and internet, teleconferencing and mobile technology.

Key Points

• All these information technologies have mainly two types of communication technologies.
  • Satellite based communication and
  • Terrestrial based communication.
• Satellite based communication is the communication, which takes place between sender and receiver through a communication satellite whereas terrestrial based communication is the communication, which takes place through a network of transmitters spread across a geographical area, a country, or a state.
• This type of communication is used in the transmission of radio and television in India.
• However, with the launch of a series of satellites by Indian Space Research Organization (ISRO), satellite based communication is being used for telecommunication.

Important Points

• Communicating information effectively by making use of appropriate technology is called information and communication technology (ICT).
• In all, ICT is an umbrella term that includes many communication devices such as radio, television, cellular phones, computers and network, satellite systems and so on.
• ICTs are defined, as a “diverse set of technological tools and resources used to communicate, and to create, disseminate, store, and manage information.

Useful strategies for teaching students with mental retardation include the following:

• Teach one concept or activity component at a time
• Teach one step at a time to help support memorisation and sequencing
• Teach students in small groups, or one-on-one if possible
• Always provide multiple opportunities to practice skills in a number of different settings
• Use physical and verbal prompting to guide correct responses, and provide specific verbal praise to reinforce these responses

Mrs. Sen is most liked by her students because she has knowledge to answer each and every question asked by the children and she also practises child pedagogy while teaching. This supports children in their social and mental development. Using different teaching techniques or dressing up in different attires everyday doesn't make a teacher likeable to students.

Intrapersonal communication can be defined as communication with one's self, and that may include self-talk, acts of imagination, visualization, even recall and memory. Some scholars have expanded communicating with oneself to include a vast range of cognitive behaviors, mental entities like traits, knowledge and processes like association and comparison.

In junior section, Mrs Singh is teaching about Earth, its shape and rotation by using a globe. In such teaching, learning take place by observation. Students observe the globe to get knowledge.

Observational learning is the learning that occurs through observation of the behavior of others. It is a form of social learning which takes various forms, based on various processes.

We know that Fluorine has a charge of -1 which then means 'A' has to have a charge of +3. I got that from the AF₃. If Iodine is substituted for Fluorine, the answer should be B. AI₃ because Iodine also has a charge of -1. Although the actual answer should be 2AI₃ because Iodine is also a diatomic element which would give us the reaction 2A+ 3I₂ >>> 2AI₃.

w₁| = 20.0 g

m₁ = 11x 12 + 8 x 1 + 2 x 16 = 172 g mol^-1  w₂ = 50.0 g 

If FeCl₃ is added to excess of hot water, a positively charged sol of hydrated ferric oxide is formed due to adsorption of Fe³⁺ ions.
Ferric hydroxide is a negative sol,FeCl₃ electrolyte will coagulate the most.

Δ_rH=Δ_rH_(product)-ΔrH_(reactant)
=3×-393+81+3×110-9.7
=-777.7kJ
ΔH = ΔU+Δn_gRT
AS Δn_g = 0, ΔH = ΔU
So, ΔU = -777.7 kJ

With increase in temperature molecular collisions increases therefore rate of reaction doubles.

Ford-block elements, group number is equal to the number of electrons in (n - 1)d subshell + number of electrons in valence shell (nth shell).

• Mendeleev arranged the elements in order of their atomic masses while taking chemical properties into consideration.
• He left gaps predicting that some elements will be discovered later.
• When inert gases were discovered, they could be placed in a new group without disturbing his existing table.

Since statement A states that groups 7 and 8 were arranged on the basis of equivalent weights, it stands incorrect. 

When two atoms approach to form a bond, there is decrease in potential energy (PE). After bond formation, at a minimum distance (called bond length). PE further increases.

As per IUPAC nomenclature, 0 – nil, 1 – un, 2 – bi, 3 – tri, 4 – quad, 5 – pent, 6 – hex, 7 – sept, 8 – oct and 9 – enn. Here it’s 109 so 1 – un, 0 – nil and 9 – enn, combining them its unnilennium (adding “-ium” after it).

The correct answer is Option B.
 
The molar mass of benzene is 78 g
 
The molar mass of toluene is 92 g
 
n_Ben = 78/78 =1

n_Tol = 92/46 = 0⋅5

X_Ben = 1 / 1+0⋅5

        = 1⋅5

P_Ben = X_BenP⁰_Ben
             = (1/1⋅5) × 75
            =​  50

The wide range of oxidation state of actinoids is due to the fact that the 5f, 6d and 7s energy levels are of comparable energies and all these three subshells can participate in comparison to lanthanoid. The 5f orbitals extend farther from the nucleus than the 4f orbitals.

The response of a young child on the basis of the past situation is related to the 'Law of Analogy' of learning. 
The 'Law of Analogy' principle was developed by Edward Thorndike. According to him, an individual makes use of old experiences while learning a new situation. The way young child did he identified the similarities between the past situation and the present one.
Hence, the correct answer is, 'Law of Analogy' of learning.

Indian education structure and management were guided by New Education Policy, of 1986 for a long time (almost 34 years). In the meantime, a lot of changes have taken place globally as well as a debate has also emerged in India about a ‘Bharat-centric’ policy on education.

• In order to look into those, a new committee was set up under the chairmanship of Dr. K. Kasturirangan in June 2017. After reviewing the suggestions, the committee finalized the policy under the name National Education Policy, 2020 on July 29, 2020. 

Key Points

Major recommendations of the policy were -

• The aim of equity and inclusion is now at the heart of the new NEP so the classroom should be inclusive.
• Ensuring universal access at all levels of schooling from pre-primary school to Grade 12.
• Ensuring quality early childhood care and education for all children between 3-6 years.
• New Curricular and Pedagogical Structure (5+3+3+4)including foundational, preparatory, middle, and secondary.
• Establishing National Mission on Foundational Literacy and Numeracy.
• Emphasis on promoting multilingualism and Indian languages. 
• Exposure to vocational education in school and higher education system.
• Focus on Formative and Diagnostic Assessment.
• Setting up multidisciplinary education and research universities(MERUs).
• Setting up of National Research Foundation(NRF).
• Multidisciplinary approach and focus on creative and divergent thinking.
• Experiential learning using previous knowledge and experiences.
• Teacher Education - 4-year integrated stage-specific, subject-specific Bachelor of Education.

Hence, it is concluded that all the above options are correct.

'Chivalry' is the quality in a man of being highly courteous in his presentation. None of the other options means the same as that of the given phrase.
A preacher is a religious teacher, a savior is a person who protects people in times of need and a knight is a great warrior.
Example-Chivalrous men are difficult to be found in today's world.

सही उत्तर 'वाक् + हरि' है।

• 'वाग्घरि' का सही संधि-विच्छेद 'वाक् + हरि' है।
• 'वाग्घरि' शब्द में 'क् + ह = ग्ह' का मेल हो रहा है इसलिए यहां व्यंजन संधि है।

Key Points

Important Points'क्' का 'ग्' होना-

• वाक् + जाल = वाग्‍जाल
• ऋक् + वेद + ऋग्‍वेद
• वाक् + दान = वाग्‍दान
• दिक् + विजय = दिग्विजय
• वाक् + धारा = वाग्‍धारा