AWES TGT Chemistry Mock Test - 7 - AWES TGT/PGT MCQ

• The Union Cabinet cleared the Cinematograph (Amendment) Bill, 2023 which has provisions for harsher punishments for film piracy and the introduction of new age categories for classifying films.
• The Bill will be introduced in the upcoming Monsoon Session of Parliament, as per the Information and Broadcasting Minister Anurag Thakur.

The Assam government has repealed the Assam Muslim Marriage and Divorce Registration Act, 1935, as announced in a recent cabinet meeting in Guwahati. The Act, utilized by 94 Muslim registrars for marriage and divorce registrations, will no longer be valid. Assam Tourism Minister Jayanta Malla Baruah revealed the decision, stating that Muslim marriage and divorce registrations will no longer be conducted under this Act. The government will offer a one-time compensation of two lakh rupees to the affected Muslim Marriage Registrars for rehabilitation.

The world's first wooden satellite, named LignoSat, is set to be launched by NASA and the Japan Aerospace Exploration Agency (JAXA) in 2024.

Jyothi Yarraji secured the gold medal in the 60m hurdles event at the Asian Indoor Athletics Championship in Tehran. She achieved this feat with a timing of 8.12 seconds, breaking her national record set in the previous edition of the championship.

Education Policy lays particular emphasis on the development of the creative potential of each individual. It is based on the principle that education must develop not only cognitive capacities - both the ‘foundational capacities ’of literacy and numeracy and ‘higher-order’ cognitive capacities, such as critical thinking and problem solving – but also social, ethical, and emotional capacities and dispositions.

National Education Policy 2020-

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- 

• Establishment of the linkage of the concepts with the environment or we can say that the linkage of the school with the home.
• It includes the overall development of the leader, it covers all three aspects as Cognitive domain, affective domain, and psychomotor domain.
• It will include Progress of the Child in Inquiry-Based Learning, Quiz, Projects Roleplay, Group Work, Portfolios, etc, as part of the assessment of the students.
• Promoting self-assessment and the peer assessment done by the student in the classroom.
• Making board examination low stake and less stressful by focusing on Logic and Core Competencies
• It emphasizes group work as well as individual work, NEP 2020 links the study to the curriculum.
• Hence we conclude that all the objectives given in the question are correct for the assessment of the student.

Important Points  There are many changes in the assessment of the child, proposed in NEP 2020:

• Continuous Tracking Of Learning Outcome Of Each Child.
• Board Examinations to be made more flexible with an assessment of essential skills.
• Assessment to focus on core concepts, higher-order, and foundational skills 
• AI-based soft wares to help track the progress of students to enable them to make optimal career choices.
• National Assessment Centre (PARAKH) will bring greater synergy to board examinations.
• Self Assessment & Peer Assessment.
• National Testing Agency (NTA) will work to offer a Common Aptitude Test of high quality to eliminate the need for coaching for these exams. 

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.

Epoxidation is an example of electrophilic ad dition at olefin ic bonds. Therefore, greater the electron density at olefinic bond, greater its reactivity. Electron donating groups increases reactivity while electron withdrawing group s like — CF₃ decreases reactivity.

White phosphorus when heated to 300° C polymerization occurs and it changes to Red Phosphorus.

Intramolecular Cannizaro reaction occur.

All four substituent are different so it is chiral compound.

This reaction is called Gattermann reaction. In this reaction, Cl, Br and CN can be introduced into the benzene ring by simply treating diazonium salts with HCl, HBr, KCN. Respectively in presnce of copper powder instead of using Cu(I) salts.

CaNCN + 3H₂O → CaCO₃ + 2NH₃

In the above reaction, appropriate conformer of the given compound is drawn first which has ‘Br’ and ‘H‘ an anti position (I).

The correct answer is Option A.

E represents the energy of activation which implies it is the energy below which colliding molecules will not react Arrhenius equation gives the dependence of the rate constant k of a chemical reaction on the absolute temperature T (in Kelvin), where A is the pre-exponential factor (or simply the prefactor), Ea is the activation energy, and R is the Universal gas constant:
By Arrhenius equation, k=Ae^-Ea/RT

Ionisation isomerism is due to the exchange of groups between the complex ion and the ions outside it, e.g. [Cr(H₂O)₄CI(NO₂)CI] and [Cr(H₂O)₄CI₂]NO₂ show ionisation isomerism. 

The correct answer is Option A.
No of asymmetric carbon atoms in 
2 - dimethylcyclohexane  = 2
3-methylcyclopentene = 1
3-methylcyclohexene = 1

Although it is secondary alcohol, it forms a very unstable carbocation (Cl is electron withdrawing group), hence it does not give turbidity with Lucas reagent in cold condition.

The correct answer is option B.

The I.U.P.A.C. name for Fe(C₅H₅)₂ is bis(η⁵ -cyclopentadienyl) iron(II) 
The oxidation state of iron is +2 and is written in parenthesis in roman numerals. Two cyclopentadienyl ligands are coordinated to Fe. The prefix bis indicates 2. η⁵ indicates that the cyclopentadienyl ligands are penta coordinates.

The correct answer is option C
ΔT = Kf​ × molality × (1+α)(HX ⇌ H+   + X−)
Given molality = 0.2;  degree of ionization is 0.3
=1.85×0.2×(1+0.3)
=0.481K
The freezing point of the solution will be 0.81 K.

Repeated aidol condensation occur due to very high reactivity of formaldehyde towards nucleophile.

(II) forms more stable carbocation than (I).

Currently, oil burning is responsible for about 30% of all carbon dioxide emissions to air. Natural gas does not release as much carbon,cooper dioxide because of its methane structure. The largest emissions are cause by coal combustion. Coal may result in underground fires that are virtually impossible to extinguish

ΔG=ΔH−nFT(dE/dT)_P
​and  ΔG=ΔH−TΔS
∴ΔS/nF=(dE/dT)_P
or  
96.5/2×96500=(dE/dT)_P
​∴(dE_cell/dT)P
​=1×10⁻³ / 2
=5×10⁻⁴VK⁻¹

1.38 moles of CH₃OH in w kg water

1.38 moles of CH₃OH in w Kg water 

So that molarity = 1.0

In the Castner-Kellner method NaOH is prepared by the electrolysis of an aqueous solution of NaCl(Brine).

Additional Information: The Castner Kellner process is a method of electrolysis of sodium chloride solution to produce alkali hydroxide. It uses electrolytes of NaCl solution graphite anode and mercury cathode.

Nucleophilic attack in step-ll occur at the carbon atom which can better accommodate the positive charge. Hence, attack of Br^- or Cl^- in second step occur at 2° carbon rather that at 1° carbon.

Black P has layer lattice like graphite.

Isentropic process means that entropy is constant. This is true only for reversible adiabatic process.
Applying P₁^1-γ T₁^γ = P₂^1-γ T₂^γ (for monatomic species, γ = 5/3)
(1/P)-⅔ = (75+273/25+273)^5/3
Or (1/P)-2 = (348/298)⁵
Or P = 1.474 bar

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.