EMRS PGT Chemistry Mock Test - 3 - EMRS MCQ

The correct answer is ​Purandara Dasa.

Key Points

​Purandara Dasa

• ​​He is considered the Pitamaha of Carnatic music.
• His compositions are mainly in the Kannada language.
• He was born in 1484.
• Raga Mayamalavagowla first carnatic music was discovered by Purandara Dasa.

Additional Information

• Trippunithura Narayanaiyer Krishnan (TN Krishnan) was born on October 6, 1928, in Cochin.
• He learned music from his father and was provided with the patronage of the Royal Family of Cochin.
• He was tutored by Semmangudi Srinivasa Iyer, another prominent Carnatic Violinist.
• Awards:
  • Padma Shri (1973)
  • Sangeet Natak Academy Award (1974)
  • Padma Bhushan (1992)
  • Sangeet Kalanidhi (1980).

The correct answer is Six.

Key Points

​Therefore, The United Nation have Six organ body. 

Important Points

• ​The United Nations is an intergovernmental organization.
• The stated purposes are to maintain international peace and security, develop friendly relations among nations, and achieve international cooperation.
• The United Nations (UN) main organs are— the General Assembly, the Security Council, the Economic and Social Council, the Trusteeship Council and the Secretariat, and the International Court of Justice.
  • Founded: 24 October 1945
  • Headquarters: New York, New York, United States
  • Secretary general: António Guterres

The correct answer is Pataliputra.

Key Points

• Pataliputra was the capital of the Mauryan Empire.
• The empire lasted from 321 to 185 BCE.
• The Mauryan Empire was founded by Chandragupta Maurya and the most popular ruler of the empire was Ashoka.
• Mauryan dynasty had three important rulers:
  • Chandragupta
  • Bindusara
  • Ashoka

 Thus, we can say that Pataliputra was the capital of the Mauryan Empire.

Additional Information

• The most important cities of the empire were the capital Pataliputa, Ujjain and Taxila.

Given:

Mohit got 30% marks and failed by 25 marks

Another student scored 38% and

He got 15 more marks than passing marks

Calculation:

According to the question

⇒ 30% + 25 = 38% – 15

⇒ (38% – 30%) = (15 + 25)

⇒ 8% = 40

⇒ 1% = 5 marks

Now,

5% = 25 marks 

Then,

The necessary pass percentage required = (30% + 5%)

⇒ 35%

∴ Required pass percentage is 35%

All conditions are as follows;

Rakul doesn't fulfill the necessary conditions for any post.

Thus he is not eligible for any post.

Hence, the correct answer is "Option 2".

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

In the above figure it consist 8 triangle so that no. of square is 3 so that total no. of triangle is 8 x 3 = 24

and 4 triangle shown in question figure so that answer is 24 + 4 = 28

There are 8 triangles in the figure. By counting the individual triangles, we can see that there are 2 large triangles, 4 medium triangles, and 2 small triangles, making a total of 8 triangles.

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.

Diagnostic evaluation has a placement function and so takes place before instruction. It is used to determine underlying causes of learning difficulties. Diagnostic evaluation may include administration of standardised achievement tests, standardised diagnostic tests, teacher-made tests, observation and checklists. Scoring and interpretation can be normative (based on norms) or criterion-referenced. Results are usually shown as an individual profile of sub-skills.

Learning is effective in an environment that is emotionally positive and satisfying to learners. Any learner who is emotionally unstable may not be able to learn anything. The teacher must make the environment conducive for students to study and learn efficiently.
Errors made by the students do not indicate that no learning has taken place. Instead, they are the windows through which a teacher can understand the thought process of the students.
Learning is affected by emotional factors at any stage. Emotions change over time as the child matures, and in response to changing environmental interactions. The kind of learning that takes place at different emotional levels also differs.
Learning involves physical, social and emotional activity also.

The greenhouse effect is where heat energy is trapped by the atmosphere

The reaction of methanol with phenyl magnesium bromide is:

CH₃OH + C₆H₅MgBr → C₆H₆ + Mg(OCH₃)Br

A mixture of benzene and Mg(OMe)Br is obtained.

The correct option is A.

The correct answer is option A.
Negative deviation means lower vapour pressure, it suggests high boiling point, thus resultant intermolecular force should be stronger than individual one.

Most of the f block elements, lanthanoids and actinoids are man made/synthetic/prepared in the lab. Especially actinoids.

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

Global warming will not increasing the size of the hole in the ozone layer

the k is halved while the A is doubled. Hence R remain 50 Ω.

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 optically active hydrocarbon X is 3-methyl-1-pentene CH₂=CH−CH(CH₃)CH₂CH_3​. On catalytic hydrogenation, it forms 3-methyl pentane CH₃CH₂CH(CH₃)CH₂CH₃, which is optically inactive.

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

When zinc is placed in copper nitrate solution the intensity of the blue colour is produced and copper iron is deposited on zinc.

• This is a Redox reaction between zinc and an aqueous solution of copper nitrate occurring in a beaker.

2(NH₄Cl) + Ca(OH)₂ → (CaCl)₂ + 2(NH₃) + 2(H2O)
Hence C is correct.

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.

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.

'A strenuous situation' is one which is difficult and requires a lot of hard work to be completed or tackled. 
Thus, option 3 is the correct answer. 
Example- A lot of strenuous work was required to drill the tunnel across the Ladakh valley.

शब्द 'स्वागत' में संधि है- 'यण संधि'

• सु + आगत = स्वागत (उ + आ = वा)
• इसमें यण संधि है।
• 'सु' (अच्छा) उपसर्ग और 'आगत' (आया हुआ) मूलशब्द
• अर्थ: अभिनंदन, सत्कार, आवभगत, अभिवादन, इस्तिकबाल।
• विलोम शब्द- 'तिरस्कार'

Key Pointsयण संधि:-

• जब संधि करते समय (इ, ई) के साथ कोई अन्य स्वर हो तो ‘य‘ बन जाता है,
• जब (उ, ऊ) के साथ कोई अन्य स्वर हो तो ‘व‘ बन जाता है, जब (ऋ) के साथ कोई अन्य स्वर हो तो ‘र‘ बन जाता है।
• तो इसे यण संधि कहते है।

उदाहरण-

• अधि + आय = अध्याय (इ + आ = या)
• अनु + एषण = अन्वेषण (उ + ए = वे)
• पितृ + आज्ञा = पित्राज्ञा ( ऋ + आ = र )

Additional Information