HPSC PGT Chemistry Mock Test - 3 - HPSC TGT/PGT MCQ

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 Hardeep Doon.

Key Points

• Haryana has got its first Traffic ADGP.
• IPS officer Hardeep Doon has been given the responsibility of this.

Additional Information

• On behalf of Home Minister Anil Vij, he has been asked to comprehensively improve the traffic system of the state.
• Also asked to make 15 permanent traffic rules on the lines of Delhi, for which the dateline of 31st December was fixed.
• Rajesh Jogpal -
  • He has been appointed as the standard chairman of Modern Pythian Games Haryana.
• Women's World Hockey Goalkeeper of the Year Savita Poonia has been selected.
• Santosh Yadav -
  • He was made the chief guest at the Vijayadashami festival by the RRS.​ 

The correct answer is Shot put.

Key Points

• Deepa Malik
  • She was born on 30 September 1970 in Bhaiswal, Haryana.
  • She started her career at the age of 30.
  • She is the first Indian woman to win a medal in Paralympic Games and won a Silver medal at the 2016 Summer Paralympics in the shot put. Hence, Option 1 is correct.
  • She has also won gold in the F-53/54 Javelin event at the para athletic Grand Prix held in Dubai in 2018. 
  • She is currently the world number one in the F-53 category. 
  • She is a member of the working group in the formulation 12th five-year plan (2012–2017) on sports and physical education.
  • She was honoured with the Arjuna award in 2012, at the age of 42 years.
  • She has also been conferred the prestigious Padma Shri award in 2017.
  • She has won 58 national & 23 International medals across all disciplines to date.

The correct answer is Kurukshetra.

Key Points

• Surya Grahan Fair:
  • This fair is held in Kurukshetra district.
  • It is held on the day of solar eclipse (July).
  • On this day devotees gather and take a holy bath.
  • After taking a holy bath they conducted devotional acts.
  • This fair is very famous all over India and people come from all the states to attend this fair.

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.

Teachers can facilitate children's understanding of complex concepts by providing opportunities for exploration and discussion.

NEP 2020 aims to achieve a Gross Enrollment Ratio (GER) of 50% in higher education by 2035.

2CO + O2 ------------> 2CO₂
Atomic wt of C =12 kg or gms, Atomic wt of O = 16 kg or gms
2(12 + 16) kg of CO + 32 kg of O2 -----------> 2(12+32) kg of CO₂
56 kg of CO + 32 kg of O₂ -------> 88 kg of CO₂
For, 1kg of CO + 32/56 kg of O₂ ---------> 88/56 kg of CO₂
Therefore, 1kg of CO requires 32/56 or 4/7 kg of oxygen to produce 88/56kg or 11/7 kg of CO2

The compounds with each doubly bonded carbon attached to two different groups (like Cab=Cab, Cab=Ccd) exhibit geometrical isomerism i.e., cis and trans forms. The geometrical isomerism arises due to restricted rotation of double bond.

However, even though there is restricted rotation for triple bond, alkynes do not exhibit geometrical isomerism, since the triply bonded carbons are attached to one group each only.

A pi-bond is a type of covalent bond in which the internuclear axes of the atoms are parallel to each other and for side-wise overlapping. The bond formed here is perpendicular to the internuclear axes.

At anode 2Cl^- —-±>Cl₂+2e^-
At cathode 2Na⁺ +2e^- ——-> 2Na.
So 2 Faraday of electricity is required to liberate 1 mole = 22.4 liters of Cl₂ at STP.
Amount of current passed
= 30 x 60 x 60=108000 coulombs.
So 108000 coulombs will liberate =108000/(96500 x2) = 0.5596 moles Cl₂.
No.of liters of Chlorine liberated at STP
= 0.5596 x 22.4 = 12.53 liters.

Pressure increase solubility also increase in accordance with the Henry's law and option B is the closest to this. Hence B is correct.

The angular momentum (mvr) of electron in nth orbit is equal to nh/2π
For the electron in 5th orbit

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

• 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. 

If FeCl₃ is added to excess of hot water, a positively charged sol of hydrated ferric oxide is formed due to adsorption of Fe³⁺ ions.
Ferric hydroxide is a negative sol,FeCl₃ electrolyte will coagulate the most.

In frame test thermal excitation deexcitation takes place in cation with low Ionisation potential

Isobar means when pressure is constant.

• There are a total of 7 periods in the periodic table.
• The sixth period of the periodic table contains 32 elements.
• It is beginning with cesium and ends with radon.
• Lead (Pb) is currently the last stable element whereas all subsequent elements are radioactive.

Answer:

Given

Density of water (ρ) = 1g/cm³

Molar mass of water (M) = 18 g/mol

∴ Molar volume (Vm) = M/ρ

Vm = 18 cm³/mol

∴ Volume of 1 molecule of water = V_m/N_A

Where N_A is Avogadro number

Volume of 1 molecule of water = 18/(6.022 × 10²³)

Volume of 1 molecule of water = 2.989 × 10^-23 ≈ 3 × 10^-23.

Squaring on both sides 



⇒
⇒
⇒
=> 10 bar approximately

Tertiary halide would be most reactive in S_N1 reaction.

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.

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.

Free radical bromination occur. Preferably at highest degree carbon where most stable free radical is formed.

Evident from Fajan rule

The correct answer is Option C.
A diastereomer is a stereoisomer with two or more stereocenters and the isomers are not mirror images of each other.
If a molecule has more than one stereocenter and every single stereocenter isn’t in the opposite direction then they are diastereomers. diastereomers will always have non-identical (but non-opposite) R,S designations.

Correct Answer :- b

Explanation : The 2o hydrogens are 20 times more reactive than the 1o ones.

The reaction is as follow:-
Ca(HCO₃)₂(s)⇌CaO(s) + 2CO₂ (g) + H₂O(g)
At 25° C H₂O goes in liquid state
Kp = (PCaO)1×(PCO₂)₂
(PCa(HCO₃)₂)
Since, Ca(HCO₃)₂, CaO and H₂O are not in gaseous state, so their partial pressure is taken 1.
Putting all values, we have
36 = (PCO₂)₂ 
Or PCO₂ = 6 atm