EMRS PGT Chemistry Mock Test - 3 - EMRS MCQ

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%

The total distance = 15 + 20 + 30 + 15 = 80m

Hence, the correct answer is 80m.

The logic follows here : 
1. Sukhoi Su-30MKI is a Fighter Jet.
2. INS Vikrant is different from these two, it is an Aircraft Carrier.

The least possible Venn diagram for the given set of words is :

Hence, the correct answer is "Option (4)".

Additional Information

INS VIKRANT

• INS Vikrant is a 37,500-tonne carrier and has been launched almost four-and-a-half years after its keel was laid.
• The launch of warship, which has a length of 260 metres and is 60 metres wide.
• The launch has marked India's entry into a select club of countries capable of designing and building a carrier of this size and capability.
• There are 14 decks in all, including five in the superstructure. The ship has over 2,300 compartments, designed for a crew of around 1,700 people, including specialized cabins to accommodate women officers.
• There are 14 decks in all, including five in the superstructure. The ship has over 2,300 compartments, designed for a crew of around 1,700 people, including specialized cabins to accommodate women officers.

Sukhoi Su-30MKI

• The Sukhoi Su-30MKI is a twinjet multirole air superiority fighter developed by Russia's Sukhoi and built under license by India's Hindustan Aeronautics Limited (HAL) for the Indian Air Force (IAF). A variant of the Sukhoi Su-30, it is a heavy, all-weather, long-range fighter.
• The IAF has nearly 260 Su-30MKIs in inventory as of January 2020.
• Based on the Su-30 fighter aircraft, Su-30MKI is equipped with thrust vectoring control and canards.
• The aircraft has a length of 21.9m, wingspan of 14.7m and a height of 6.4m.
• The maximum take-off weight of Su-30MKI is 38,800kg.
• The Su-30MKI is also equipped with a N011M passive electronically scanned array radar, OLS-30 laser-optical locator system and Litening target designation pod to guide air-to-surface missile and laser guided munitions.
• The Su-30MKI is armed with a 30mm Gsh-30-1 cannon with 150 rounds of ammunition.
• The Su-30MKI fleet of IAF was fitted with air-launched version of BrahMos supersonic cruise missiles and was successfully tested in November 2017.
• The BrahMos can strike targets within the range of 290km.
• The IAF completed the successful integration of the cruise missile on the fighter, with the third live firing of the missile from the aircraft in December 2019.

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

Similarly,

We use pen for writing.

Hence, Write is the correct answer.

ICT in Research:

• Researchers mainly use ICT tools for its ability to ease the knowledge-gathering process and to enhance resource development.

Generally, ICT tools help researchers in the following research-related tasks:

• identify appropriate information sources
• critically analyze information
• research effectively
• manage information
• use the information to extend and communicate knowledge across subject fields
• search up to ten databases and electronic resources simultaneously
• receive results in a common format
• link to individual databases for more specialized searching
• Communicate findings
• select favourite resources and e-journals, save searches and records, and set up email alerts.

Additional Information

• Information and Communication Technology (ICT) refers to technologies that provide access to information through telecommunications.
• ICT is an important tool in research as it speeds up research work.
• It helps to increase knowledge contribution within the research community.

Thus, it can be concluded that option 2 is the correct answer.

The term Information Communication Technology (ICT)  refers to all devices, networking components, applications, and systems that combined allow people to interact in the digital world.

Key Points

• It consists of all components related to computer and digital technologies.
• It consists of a communication system such as radio, television, etc.
• Components, such as computers and telephones, have existed for decades whereas smartphones, digital TVs, and robots, are more recent entries. 
• Tesla automotive is an automobile company that has no link with communication technology.

Hence, we can conclude that option 1 is the correct answer to this question.

Important Points

• Information and communication technology (ICT) has brought new possibilities to the classroom.
• Internet and interactive multimedia are of great significance for teaching.
• It needs to be effectively integrated into the formal classroom activities for enriching the content and quality of teaching and learning.

+3 charge means no of electrons will be 3 less than no. of protons. So no. of protons will be 21. So atomic no. is 21.

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.

The metallic character of group 14 elements increases from top to bottom because removal of electron becomes easier on moving down the group. Metallic character increases as you move down an element group in the periodic table. This is because electrons become easier to lose as the atomic radius increases, where there is less attraction between the nucleus and the valence electrons because of the increased distance between them.

KCI is an ionic compound. Force of attraction (F) between K+


Greater the value of D, smaller the value of F, hence larger the solubility.
Note D for CH₃OCH₃ is least out of given solvents, thus solubility is minimum.

Tertiary halide would be most reactive in S_N1 reaction.

Number of chiral centers = 2

(c)

AB = a, AC = a

BC² = AB² + AC² =2a²

Radius =r

then BC = CD + DE + EB = r + 2r + r = 4r 

∴ 16r² = 2a²

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

The correct answer is B: CNS⁻.

Explanation:

• Linkage isomerism occurs when a ligand can coordinate to the central metal ion through two different atoms, leading to different isomers.

• Flexidentate ligands are ligands that can form multiple bonds to the metal centre via different donor atoms.

CNS⁻ (Thiocyanate) is an example of a ligand that can exhibit linkage isomerism. The thiocyanate ion (CNS⁻) can bind to the metal through the nitrogen atom (N) or the sulfur atom (S), leading to two different isomers:

1. N-bonded thiocyanate (also called isothiocyanate),

2. S-bonded thiocyanate.

This makes CNS⁻ a flexidentate ligand, as it can coordinate through two different donor atoms (N or S), showing linkage isomerism.

Thus, the correct answer is B: CNS⁻.

Volume of resulting solution = 100 ml

• 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. 

The correct answer is Option C.

Reactions with a negative ∆G release energy, which means that they can proceed without an energy input (are spontaneous). In contrast, reactions with a positive ∆G need an input of energy in order to take place (are non-spontaneous). Reactions with a positive ∆H and negative ∆S are non-spontaneous at all temperatures.

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).

Atomic and ionic radii increase down the group due to increasing number of quantum shells.

The sounds th, ph, ch are phonemes. The phoneme is the unit of sound.  A phoneme combines with other phonemes to give rise to meaningful words. Phonemes distinguish one word from another. These are established by the use of minimal pairs, such as pat vs bat or tap vs tab.
Hence, the correct answer is, 'Phonemes.'

In the triarchic theory, three types of intelligence proposed by Robert Sternberg are: Analytical, Creative and Practical.

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.

The correct answer is National Higher Education Regulatory Council (NHERC).
Important PointsThe National Education Policy (NEP) 2020 proposed the creation of a Higher Education Commission of India (HECI) as a single overarching umbrella body for higher education.

• This new regulatory body would replace the existing separate regulatory institutions in the higher education sector to improve coordination and maintain standards.
• The HECI is set to have four independent verticals, namely:

1. National Higher Education Regulatory Council (NHERC)
2. General Education Council (GEC)
3. Higher Education Grants Council (HEGC)
4. National Accreditation Council (NAC)

Each of these verticals has specific roles and responsibilities, from regulation, to setting standards, to funding, to accreditation.

• According to NEP 2020, the first vertical of the HECI will be the National Higher Education Regulatory Council (NHERC).
• This council will be the primary regulator for higher education in India, including teacher education, excluding medical and legal education.
• This implies that all other bodies, like UGC and AICTE, would cease to be regulatory bodies and would only be responsible for standards setting and providing grants.

Therefore, the correct answer would be the "National Higher Education Regulatory Council (NHERC)".

'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.

A possessed person is one who is under the influence of an evil spirit. No other option appropriately represents the phrase given.
Example- Mohit ran from the house as if he was possessed person. 

सही उत्तर 'लोक + एषण = लोकएषणा' है।

• दिए गए विकल्पों में असुमेलित 'लोक + एषण = लोकएषणा' है।
• 'लोक + एषणा' का सही सुमेल 'लोकैषणा (अ + ए = ऐ)' होता है।
• यह 'वृद्धि स्वर संधि' का उदाहरण है।
• इसमें अ या आ के बाद ए या ऐ आए तो ‘ऐ’ और ओ और औ आए तो औ हो जाता हो।

अन्य विकल्प-

• मातृ + इच्छा = मात्रिच्छा - यण स्वर संधि
• लघु + उत्तर = लघूत्तर - दीर्घ स्वर संधि
• सु + समा = सुषमा - व्यंजन स्वर संधि

Additional Information

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