NVS PGT Chemistry Mock Test - 8 - NVS TGT/PGT MCQ

The correct answer is NaHCO3.

Key Points

• Chemically known as sodium bicarbonate, the formula of baking soda is NaHCO3.
• Baking soda is a white and crystalline salt that is made up of bicarbonate anion and sodium cation.

Additional Information

The correct answer is Rigveda.

Key Points

• There are four Vedas- 

1. Rigveda 
2. Samaveda
3. Yajurveda
4. Atharvaveda

• Out of these four Vedas, Rigveda is the oldest Veda.
• Rigveda includes more than a thousand hymns called sukta.
• These hymns are written in the praise of gods and goddesses and composed by sages.
• The three most important gods were:

1. Agni, the god of fire
2. Indra, a warrior god
3. Soma, in the Vedas, particularly in the Rigveda, Soma is an important deity. He represents the divine embodiment of the Soma plant and the drink derived from it. He is often described as the divine intoxicant, a provider of inspiration, and as a symbol of immortality.

 Thus, we can say that Rigveda is the oldest veda.

In modern democracies, power-sharing arrangements can take many forms.

Important Point
Power is shared among different organs of government, such as the legislature, executive and judiciary are called horizontal distribution of power.

• Because it allows different organs of government placed at the same level to exercise different powers.
• Such separation ensures that none of the organs can exercise unlimited power.
• This system is also known as the system of checks and balances. 
• Each organ checks the others. This results in a balance of power among various institutions.

Thus, in the Horizontal form of power-sharing, we find the arrangement of the system of checks and balances.

1) GRASS – FEARLESS (Cannot be formed because G is missing)

2) RESEAL – FEARLESS (Can be formed)

3) LESSER – FEARLESS (Can be formed)

4) ERASE – FEARLESS (Can be formed)

Hence, the correct answer is “GRASS”.

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

We do not know the gender of Shanti. 
Clearly, Shaurya is the cousin of Karan.
Hence, ‘Cousin’ is the correct answer.

Given:

The side of the square = 22 cm

Formula used:

The perimeter of the square = 4 × a    (Where a = Side of the square)

The circumference of the circle = 2 × π × r     (Where r = The radius of the circle)

Calculation:

Let us assume the radius of the circle be r

⇒ The perimeter of the square = 4 × 22 = 88 cm

⇒ The circumference of the circle = 2 × π ×  r

⇒ 88 = 2 × (22/7) × r

⇒ 

⇒ r = 14 cm

∴ The required result will be 14 cm.

Given:

The ratio of the present age of Annu and Raj = 4 : 5

Then after 8 years ratio of their age = 5 : 6

Calculation:

Let be assume the present age of Annu and Raj is 4x and 5x respectively

⇒ (4x + 8)/(5x + 8) = 5/6

⇒ 24x + 48 = 25x + 40

⇒ x = 8

⇒ The age of Annu = 4x = 4 × 8 = 32

⇒ The age of Raj = 5x = 5 × 8 = 40

∴ The required result will be 32 years, and 40 years respectively.

Refusing to help children unless they have tried themselves is the characteristic of an effective teacher.
It is better to try and fail than not try at all. A teacher must let the children try to do things and also to handle problems/situations in a controlled environment.

It is said that a teacher is a friend, philosopher and guide because a teacher plays all these vital roles in respect of pupils. It is based on the intent and capacity that a teacher possesses, exposed to which, a student is influenced to make a positive difference in his own life as well as in the society and the world at large.

Learning disabilities are neurologically-based processing problems. These processing problems can interfere with learning basic skills such as reading, writing and/or math. They can also interfere with higher level skills such as organisation, time planning, abstract reasoning, long or short term memory and attention. They are not caused due to the method of teaching used by the teacher. They may be present due to improper brain development, or infection in brain, etc. Constant fights amongst parents also lead to mental strain and anxiety in students, which may lead to learning disabilities.

Teachers use different evaluation methods because different subjects require different methods of assessment like science can be assessed by practical exams and languages can be assessed by evaluating verbal ability and fluency.

Dobereiner's Triads were groups of three elements with similar chemical properties, where the atomic mass of the middle element was approximately equal to the average of the other two. Carbon, being a nonmetal with a unique set of properties, did not fit into any known triad.

(c)

Nearest neighbours are along the diagonal at the half distance apart, Diagonal AB = √3a

∴ Distance of the nearest neighbour

Next nearest neighbours are along the cell edge = 520 pm

K-atom at the centre is surrounded by eight K-atoms as nearest neighbours.

In bcc, coordination number is six as next nearest neighbours

Vapour pressure is equal to atmospheric pressure ,it means the substance is at boiling point
At boiling point, liquid and Gas are in equilibrium. Therefore dG=0
dG = H - TdS
dG = 0
⇒H = TdS
⇒T = H/dS
⇒ T = 30 103/75 = 400K

Actinoids are from thorium (Z = 90)to Lawrencium (Z = 103) in the Periodic table So, rutherfordium (Z = 104) is not an actinoid.

S_N1 reaction proceeds via carbocation intermediate which is being indicated here by two transition states and a small trough between reactant and product. Also the second transition state must be below first transition state in S_N1 reaction

Among alkali metals, melting point decreases as the strength of metallic bonding decreases with increasing size of the atom. Thus, Cs has the lowest melting point (28.5°C) and will melt at 30°C.

The enthalpies of fusion for all reactions are always positive because melting of a solid is an endothermic process in which heat is supplied to the reaction Hence the sum of enthalpies of the product is greater than the sum of enthalpies of the reactant.

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

Since both cation & anion constitute coordination sphere so it exhibit coordination isomerism and contains ambident ligand so, it shows linkage isomerism

Making the mentally retarded students learn through concrete experiences and making them apply the learned skills will surely work for mentally retarded children. Therefore, it becomes important for the teacher to plan out instructions for clear understanding of the concepts. 

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.

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.

The correct answer is 'who'. 'Who' is nominative and is used to refer to the subject. 'Whom' is objective and is used to refer to the object. The word 'whose' is possessive and is used to show belonging or association. The word 'which' is used for inanimate objects.
and in the given sentence you can see we are referring to a man who was on the continent so we are talking about the subject 
suppose the sentence is
The student, who  had lost miserably.
so in this we are talking about the student and not "you"
Example- This is Mr. Lee, who is the greatest martial art teacher of this era. But  Mr. Lee, whom you thought so highly of, has lost the fight.

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 "मैं" है।

• दिए गए विकल्पों में, 'मैं' शब्द निपात का उदाहरण नहीं है।
• 'मैं' शब्द 'उत्तम पुरुष सर्वनाम' है।
• किसी भी बात पर अधिक भार देने के लिए जिन शब्दों का प्रयोग किया जाता है निपात कहलाता है।
• जैसे- भी, तो, तक, केवल, ही, मात्र आदि।

Key Points

अन्य विकल्पों का विश्लेषण:

उदाहरण:

• राधा ने मुझसे बात तक नहीं की।
• कल से मैं भी आपके साथ स्कूल आऊंगा।
• राम को आज रात रुकना ही पड़ सकता है।
• उपरोक्त उदाहरणों में तक, ही, भी शब्द वाक्यों को बल दे रहे हैं।

Important 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 –

Additional Information

• ​संज्ञा के स्थान पर प्रयुक्त होने वाले शब्दों कोसर्वनामकहते हैं।
• जैसे - मैं, वह, वे, उन्हें, अपने तुम, हम आदि।

• पुरुषवाचक सर्वनाम के प्रकार:
  • हिंदी में पुरुषवाचक सर्वनाम तीन प्रकार के होते है:
  • उत्तम पुरुष सर्वनाम- जिस सर्वनाम का प्रयोग वक्ता/बोलने वाला लिखने वाला खुद के बारे में बताने के लिए करता है।
  • जैसे: मैं, मुझे, मुझको, मेरा, मेरी, हमारी, हम, हमारा, हमें आदि।
  • मध्यम पुरुष सर्वनाम- जिस सर्वनाम का प्रयोग वक्ता सुनने वाले व्यक्ति के लिए करता है।
  • जैसे: तुम, तुमको, तुझे, तू, आप, आपने आदि।
  • अन्य पुरुष सर्वनाम- जिस सर्वनाम का प्रयोग वक्ता किसी तीसरे व्यक्ति के बारे में बताने के लिए करता है, तब इस सर्वनाम का प्रयोग होता है।
  • जैसे: यह, वह, ये, वे, आदि।

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 –