HPSC PGT Chemistry Mock Test - 7 - HPSC TGT/PGT MCQ

The correct answer is Jind.

Important Points

• Pratap Singh revolted against the British in Jind, Haryana.
• Raja Bhag Singh suffered a severe paralytic attack in March 1813. Unfit to run the administration of his state, the ailing chief wished to appoint Prince Pratap Singh the ablest and wisest of all his sons as his regent to do his work.
• But the British government to whom the anti-British bearing of the prince was known stood in his way and got Rani Sobrahi appointed in place of the price in 1814. This was unbearable for Pratap Singh and he raised the standard of revolt on June 23, 1814.
• Pratap being a popular figure the state forces also revolted and joined him forthwith. With their help, the prince lost no time in occupying the Jind fort and established his government after putting the Rani the puppet of the British government to the sword.

Additional Information

• Kaithal revolt was started in the year 1843 and its leader was Gulab Singh and Suraj Kaur.

The correct answer is Neeraj Chopra.

Key Points

• Haryana Chief Minister Manohar Lal Khattar announced that a stadium will be built in Olympic gold-medallist Neeraj Chopra's native village in Panipat.
  • Neeraj Chopra is a Javelin throw player.
  • Javelin thrower Neeraj Chopra's native village Khandra is in Panipat.
  • A stadium would be built in Neeraj Chopra's village for ₹10 crores.

Additional Information

The correct answer is golf.

Key Points

• Tvesa Malik is an Indian golf player.
• She is from Gurugram, Haryana.
• She has won the 4th leg of the Hero Women’s Golf Tour.
• Gursimar Badwal is also an Indian golf player. 

Additional Information

The correct answer is P Raghavendra Rao.

Key Points

• Haryana State Finance Commission for Panchayats:
  • Articles 243 (I) and 243 (Y) of the Constitution provide for the establishment of a State Finance Commission once every five years.
  • The First Haryana State Finance Commission was established on the 31st of May, 1994.
  • In exercise of the powers conferred by article 243-I of the Constitution of India and section 213 of the Haryana Panchayati Raj Act, 1994. 
  • The Governor of Haryana hereby makes the rules providing for the Constitution of State Finance Commission and regulating the qualifications and appointment of its Chairman and other members. 
  • Former Haryana bureaucrat P Raghavendra Rao will head the Haryana’s sixth State Finance Commission, an institutional mechanism for division of resources between the state government and the Panchayati Raj institutions (PRIs) and the urban local bodies for five years (2021-22 to 2025-26). Hence, Option 4 is correct.
  • The commission would make recommendations on “distribution between state and Zila Parishad, panchayat amenities and gram panchayats of the net proceeds of taxes, duties, tolls, and fees leviable by state”.

GIVEN:

The average of 40 numbers = 25

CONCEPT:

Basic Average concept.

FORMULA USED:

Average = Sum of all numbers/Total numbers

CALCULATION:

Sum of numbers = 40 × 25 = 1000

23, 25 and 41 are mistakenly written as 32, 52 and 15 respectively.

⇒ Change in sum = (23 + 25 + 41) – (32 + 52 + 15)

= 89 – 99

= -10

Actual sum of numbers will be 10 less.

⇒ Sum of numbers = 1000 – 10 = 990

∴ Correct average = 990/40 = 24.75

The pattern followed is, 

Logic: For all the other option sum of place value is 14 except “DJA”

Hence, “DJA” is the correct answer.

NEP 2020 emphasizes the role of teachers in promoting critical thinking, creativity, and holistic development of students.

Age of learner is proportional to the cognitive ability of the learner, thus teaching aids should be selected on the basis of the age. Use of any kind of teaching aid can only be helpful in serving the purpose, if it runs parallel to the cognitive ability of the learner.
The use of teaching aids facilitates the objective of teaching by assisting teachers in differentiating instruction. Hence, they must be chosen keeping in view what the teacher intends to teach the students.
The teaching aids also must be carefully chosen to match the intellectual level of the students. In case of students with intellectual disabilities, different kind of teaching aids are to be used, instead of those used for normal intellectual abilities.

Helium is the smallest atom. The energy level of the electrons determine the atom's volume. Electrons have a negative charge and the nucleus is positive since it is made up of protons and neutrons. Helium and Hydrogen have one and two electrons. This means they are in the the first energy sub level which is 1S (It can hold up to two electrons) So if that's all we were to consider, both atoms would be the same size. However, since Helium has more protons and electrons, the electrons have a greater attraction to the nucleus, thus decreasing its volume. So it is wrong to just look at atomic number. Hydrogen is not the smallest atom, it is the second smallest and Helium is the smallest.

When 2 moles of potassium iodide are reacted with 1 mole of hydrogen peroxide, 2 moles of potassium hydroxide and one mole of iodine is liberated. That means hydrogen peroxide liberates iodine from acidified potassium iodide.

White phosphorus when heated to 300° C polymerization occurs and it changes to Red Phosphorus.

The correct answer is option c

Thus, a racemic mixture is obtained. A racemic mixture is one that has an equal amount of left and right handed enantiomers of a chiral molecule.

The substance that gets adsorbed on the surface is known as adsorbate.

The complex [Co(C₂O₄)₂Cl₂]^3- show both geometrical and optical isomers.

The formula that these isomers contain no rings or double bonds. The isomers must be alcohols and ethers.
For The alcohols
1. CH₃CH₂CH₂CH₂OH, butan 1-ol
2. CH3CH₂CH(OH)CH₃, butan-2-ol
3. (CH₃)₂CHCH₂OH, 2-methylpropan-1-ol 
4. (CH₃)₃COH, 2-methylpropan-2-ol.
Now for the ethers.
5. CH₃CH2CH₂OCH₃, 1-methoxypropane
6. CH₃CH2OCH₂CH₃ , ethoxyethane
7. (CH₃)₂CHOCH₃ , 2-methoxypropane.

1. Enoiic H, acidic and polar takes part in H-bonding.
2. 3° alcohol least acidic maximum basic.
3. Carbonyl oxygen is not involved.
4. Acidic and polar H, takes part in H-bonding.

Buna N is used in making oil seals , tank linings.

With aluminium isopropoxide (MPV reduction), carbonyls are selectively reduced to alcohols leaving other groups intact.

In Benzene ring, the meta position is more stable than ortho and para.
At high temperature meta position will exist 
i.e option B is correct
 

Chemical Kinetics deals with rate of a Chemical reactions.

Green flame is given by Ba²⁺

BaS₂O₃+K₂CrO₄ → BaCrO₄+K₂S₂O₃   yellow ppt

Oxygen family is also known as chalcogen family when the 17 th family is known as halogen family.

This is because of Resonance.

The modern periodic table orders elements by increasing atomic number, which is the number of protons in the atom of the element. Mendeleev did not know about the parts of the atom, so he used the next best thing -- atomic weight.

The correct answer is Option A.
No of asymmetric carbon atoms in 
2 - dimethylcyclohexane  = 2
3-methylcyclopentene = 1
3-methylcyclohexene = 1

The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. The absorbed energy warms the atmosphere and the surface of the Earth.

The correct answer is option C
ΔT = Kf​ × molality × (1+α)(HX ⇌ H+   + X−)
Given molality = 0.2;  degree of ionization is 0.3
=1.85×0.2×(1+0.3)
=0.481K
The freezing point of the solution will be 0.81 K.

Electron affinity is defined as the change in energy (in kJ/mole) of a neutral atom (in the gaseous phase) when an electron is added to the atom to form a negative ion.