AWES PGT Chemistry Mock Test - 2 - AWES TGT/PGT MCQ

Afghanistan has officially closed its embassy in New Delhi permanently, attributing the decision to persistent challenges from the Indian government, following the cessation of operations on September 30.

Prime Minister Modi announced India's plan to open an embassy in Timor-Leste during the ASEAN-India summit in Jakarta, Indonesia, emphasizing India's commitment to stronger ties with Timor-Leste and the ASEAN region.

Archaeologists in Pompeii unearthed a black-walled banqueting hall adorned with vibrant frescoes depicting Greek mythology. Pompeii, a preserved ancient Roman city near Naples, Italy, lies at the base of Mount Vesuvius. Established in the Bronze Age, it thrived under Roman rule, boasting a population of 10-12,000. Buried by Vesuvius in 79 CE, Pompeii remained hidden until rediscovery in 1748. Its remarkably preserved state offers profound insights into Roman life, earning it UNESCO World Heritage status.

Inclusive education is an approach, seeks to address the learning needs of all children, youth, and adults with a specific focus on those who are vulnerable to marginalization and exclusion.

• It implies all learners, young people - with or without disabilities being able to learn together through access to common pre-school provisions, schools, and community educational settings with an appropriate network of support services.

Key Points

• An inclusive classroom promotes learning of all children, with special abilities, with various social backgrounds, and with diverse learning needs.
• In the inclusive classroom, each student gets access to knowledge, skills, and information, which improve available choices to all children and we do not necessarily limit ourselves to the knowledge domain, but rather include the affective domain, and the attitudinal domain as well.
• Every child gets the opportunity for quality and optimal learning and for enjoying learning together and actively participating in learning activities. The activities are more-cooperative and collaborative so that each child can participate effectively.
• In an inclusive classroom, there will be less stress on competition, grades, and covering the course as the child will be given importance so that they can learn effectively.

Thus, it is concluded that more effort by teachers to "cover" courses is least important in an inclusive classroom.

NEP 2020 suggests a flexible higher education system with multiple entry and exit points, allowing students to choose their courses based on their interests and career goals.

Due to intermolecular H-bonding at two terminals boiling point of glycol is maximum.

Based on Fajans' rule,
Smaller the size of cation, larger the size of anion, larger the charge,
d-f-Aelectrons present then larger the polarising power, larger the covalent nature and larger the lattice energy.

Octahedral complexes of formula [Ma₄b₂] in which the two ligands b may be oriented cis or trans to each other, e.g.

Geometrical isomers (cis and trans) of [Co(NH₃)₄CI₂]⁺.

As the temperature increases, so does the rate of reaction. But very high temperatures denature enzymes.The enzyme activity gradually increases with temperature up to around 37^oC, or body temperature.

CN^- → CNO^-
4+ x = -1      4+ x-2 = -1
∴ x = -5    ∴ x = -3   
Oxidation number increases. This is oxidation.

CN^- → CNO^- + 2e^-

The option (d) represents incorrect statement. It states that 
"Removal of electron from orbitals bearing lower n value is easier than from orbital having higher n value".
The correct statement is "Removal of electron from orbitals bearing lower n value is difficult than from orbital having higher n value".
The attraction between the nucleus and the electron present in orbital having lower n value is higher than the attraction between the nucleus and the electron present in orbital having higher n value.

Option b: Decrease concentration of sample four times and measure the optical rotation. Explanation:

• Optical rotation is directly proportional to concentration (specific rotation = observed rotation/concentration).
• If you decrease the concentration of the chiral compound in the sample, the observed optical rotation will decrease proportionally.
• If the initial observed rotation is indeed +60° and not -300°, decreasing the concentration will still result in a positive rotation, but it will be lower.

The other options are less likely to provide useful information in this context.

The correct answer is option B
There are three isotopic forms of hydrogen: Protium (H), Deuterium (D), Tritium (T). 

The isotopes of hydrogen show similar chemical properties since they possess the same electronic configuration. But they show different physical properties due to different masses. However, the reactivity of protium is more than that of deuterium or tritium. It is due to the relatively stronger D-D or T-T bond.

Alkenes can be converted to alkanes by addition of hydrogen (H₂). In a hydrogenation reaction, two hydrogen atoms are added across the double bond of an alkene, resulting in a saturated alkane. The reaction occurs in the presence of a catalyst like nickel, platinum or palladium.

The correct option is B.

Salt formed : NH₄Cl = 0.1 N
Solution will be slightly acidic due to Hydrolysis

Sulphur exists in elemental form which is extracted by Frasch process.
Sulphide ores are zinc blende (ZnS), galena (PbS), copper pyrites (CuFeS₂), cinnabar (HgS),
Sulphate ores are gypsum (CaSO₄. 2H₂O), epsom (MgSO₄ .7 H₂O) .

=21.97mg = 22mg

Potassium chloride is an ionic compound.
Since, potassium is a metal and chlorine is a non-metal and if a metal is mixed with a non-metal it gives an ionic compound. 

i (van’t Hoff factor) = 1 + (y — 1) x = (1 + 2 x)

∴ π, (osmotic pressure) = MRTi = 0.004 x R x 300 x (1 + 2x)

Glucose is a non-electrolyte.
Hence,

i = 1

π₂ = mRTi = 0.01 x R x 300 x 1 Two solutions are isotonic, hence

• Drugs that mimic the natural messenger by switching on the receptor, are called agonists.
• These are useful when there is a lack of natural chemical messenger.
• Examples: oxycodone, methadone, hydrocodone, morphine, opium and others.

For Bohr radius;
E = -13.6×Z2/ n^₂ 
For H atom, Z=1 and given energy = -3.4
So, we have, -3.4 = -13.6/n²
Or n = 2

• Drugs that bind to the receptor site and inhibit its natural function are called antagonists.
• These are useful when blocking the message is required.
•  Some examples of antagonists are naloxone, naltrexone, and Quisqualic acid.

Ti²⁺,V³⁺,Cr⁴⁺ and Mn⁵⁺ show 1s²2s²2p⁶3s²3p⁶4s⁰3d² electronic configuration.

[Ni(CO)₄] has tetrahedral geometry so hybridisation is sp³