AWES TGT Chemistry Mock Test - 1 - AWES TGT/PGT MCQ

Invest India will host the 27th World Investment Conference (WIC) in New Delhi from December 11-14, 2023, providing a platform for global collaboration and discussions on shaping the future of investments.

International Safety Pin Day is observed on April 10 every year to commemorate the contributions of Walter Hunt, an American mechanical engineer, who invented the safety pin along with various other inventions.

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.

School is a place designed to provide an adequate learning environment. In school, the opportunity a child gets to learn affects his cognitive development. The more opportunities a child gets, the better his cognition because he/she will be able to add to his/her mental capacities by learning through these opportunities. In school, during teaching-learning, many new concepts form, many new ideas develop, and many other mental processes take place.

Animals solve problems by understanding – like human beings, instead of going through either the trial and error process or stimulus response association. In this case, learning took place by insight. Learning by insight involves finding a solution to the problem by thinking over the problem and understanding the various aspects of the problematic situation.
Insight learning refers to the sudden realisation of the solution of any problem without repeated trials or continuous practices. To further elaborate on its definition, insight learning is the type of learning in which one draws on previous experience and also seems to involve a new way of perceiving logical and cause-and-effect relationship.

Due to increase in atomic size, ionisation enthalpy decreases down the group.

In A one and more different types of ligands are present.

(d)

The given compound is the result of Hofmann Exhaustive Methylation reaction.
According to Hofmann Rule the less substituted alkene is the major product.


Hence CH₂ = CH₂ will be the major product with

The correct answer is Option C.

Lyophobic colloid is a colloidal dispersion whereby the dispersed phase is solvent hating .i.e little interaction between the dispersed phase and the continuous phase. Lyophobic colloidal particles are not readily solvated because the continuous phase prefers to interact with one another rather than be involved in solvating the dispersed particles. 
Casein (a milk protein), a lyophobic colloid present in milk acts as an emulsifying agent as it forms a protective layer around fat molecules dispersed in water. It is found in milk as a suspension of particles called "casein micelles" which show only limited resemblance with surfactant-type micelle in a sense that the hydrophilic parts reside at the surface and they are spherical.
 

(C—H) bond lengths are different from (B—H) and (N—H) bond lengths. Both are planar.

Maximum oxidation number of Cl = + 7

Thus, species with + 7 oxidation number can be reduced but not oxidised.

[Co(NH₃)₄CI₂]⁺ exhibits geometrical isomerism.
cis-[Co(en)₂CI₂]⁺ because of the absence of symmetry elements exhibit optical isomerism.
[Co(NH₃)₅(NO₂)]CI₂ because of the presence of ambidentate (NO₂) ligand exhibit linkage isomerism. [Co(NH₃)₆][Cr(CN₎6] exhibits coordination isomerism because here, cation and anion both are complex.

(i) → (s), (ii) →(p), (iii) → (t), (iv) → (r)

∆H_{neutralisation} =  ∆H_H⁺ _{+ OH}- + ∆_rHionisation 
-5.1 = -57.3 + ∆H_ionisation
∆H_ionisation = 52.2 kJ mol^-1

18g H₂O = 1mol water = 6.02 x 10²³ molecules of water = 6.02 x 10²³ atoms of oxygen.

Molecularity is defined as the number of molecules, atoms, or radicals that must collide simultaneously in order for the reaction to take place. It is always a natural number and cannot be negative.

In solid state, N₂O₅ exists as nitronium nitrate 
In   nitrogen is sp and in  , nitrogen is sp².

Because isotones means the same number of neutron, So, from the question, option c is right, number of neutron in k is,39-19= 20,and,the number of neutron in ca is also 40-20=20 so it is isotones. 

Metals have low ionization energy because of there tendency to lose electrons.

Functional isomers are structural isomers that have the same molecular formula (that is, the same number of atoms of the same elements), but the atoms are connected in different ways so that the groupings are dissimilar or different functional groups.

10 amine to different 10 amines are not functional isomers. 

Hence, option ′d′ is the answer.

75mL of M/5HCl + 25mL of M/5 NaOH 
Meq of HCl = 15 (∴ Mol. wt. and Eq. wt. of HCl or NaOH are same) 
Meq of NaOH = 5 Hence, in solution 10meq of HCl remains in 100mL solution. 
So, concentration of HCl in mixture = 10/100M = M/10 
In M/10 HCl, [H⁺] = 10^-1 M
pH = -log[H⁺] = -log10^-1 = 1

Meta isomer form because of converstion of aniline to anilium ion which is META director. This can be prevented by acetylation of anilie by reaction with acetyl chloride or acetylanhydride.

In tellurium, differentiating electron enters in to 5p subshell. Its valence shell configuration is 5s²5p⁴.

Ionic hydrides are commonly known as saline hydrides or pseudohalides. These compounds form between hydrogen and the most active metals, especially with the alkali and alkaline-earth metals of group one and two elements.

In this group, the hydrogen acts as the hydride ion (H−). They bond with more electropositive metal atoms. Ionic hydrides are usually binary compounds (i.e., only two elements in the compound) and are also insoluble in solutions. Now I hope you can form your own examples, but common examples are Sodium Hydride (NaH), Lithium hydride (LiH), Potassium hydride (KH) etc.

Valence unpaired electrons are in 3p

Valence unpaired electrons are in 3p. 

Thus, (d).

In a given structure there are 4 -pi bonds.Hence, total number of pi electrons are 8.

Elements of group 1, i.e. Li, Na, K, Rb, Cs and Fr, are called alkali metals because they react with water to form alkaline solutions. The pH of solutions usually range between 8-12. 

2- pentanone is a methyl ketone. It undergoes haloform reaction with iodine in presence of sodium hydroxide, to form yellow precipitate of iodoform. 3- pentanone is not a methyl ketone. It does not undergo haloform reaction. Hence, 3- pentanone and 2- pentanone can be distinguished by reaction with iodine in presence of NaOH.

All these are soluble in water due to intermolecular H-bonding.