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

The correct answer is Mercury.

• Mercury planet is the closest planet to the Sun.

​Key Points

• Mercury:
  • The smallest planet in our solar system
  • It is nearest to the Sun.
  • It's only slightly larger than Earth's Moon.

The correct answer is Option 1,

Key PointsSports Player -

Bhavina Patel -

• Bhavina Hasmukhbhai Patel is an Indian parathlete and table tennis player from Mehsana, Gujarat.
• She won a silver medal in Class 4 Table tennis at the 2020 Summer Paralympics in Tokyo.
• She reached the World Number 2 ranking by winning the silver medal for India in the individual category at the 2011 PTT Thailand Open.
• In October 2013, Patel won the silver medal in the women’s singles Class 4 at the Asian Para Table Tennis Championships in Beijing.

​Nishad Kumar -

• Nishad is from Una, Himachal Pradesh.
• Nishad Kumar (born 3 October 1999) is an Indian Paralympian and high jumper.
• He made his maiden Paralympic Games appearance in 2020 Tokyo representing India and went on to claim the silver medal in the men's high jump T47 category with a new Asian record of 2.06m.

Harvinder Singh  -

• Harvinder Singh is an Indian paralympic archer from Haryana.
• He won a bronze medal in the men's singles recurve archery at the 2020 Summer Paralympics. 
• It is the first-ever Paralympic medal in archery for India.

Devendra Jhajharia -

• Devendra Jhajharia is an Indian Paralympic javelin thrower competing in F46 events from the Churu District in Rajasthan.
• He is the first Indian Paralympics player to win two gold medals at the Paralympics.
• He won his first gold in the javelin throw at the 2004 Summer Paralympics in Athens, becoming the second gold medalist at the Paralympics for his country.

International Yoga Day is celebrated on 21^st June every year.

Similarly;

Kargil Victory day is commemorated on 26^th July every year.

Hence, "Kargil Victory Day : 26^th July" is the correct answer.

Important Points

Aptitude tests tell about a person's ability of doing something because of his liking. An aptitude test will guide to choose his subject in class 11.

Change in behaviour is the common sign of a child in stress. A child in stress shows aggressive behaviour and acts irritably.

Both CH₃S^- and I^- are weak bases but strong nucleophiles.

The gaseous pollutants come down to the earth in form of rain forms acid rain.

Fe²⁺ is added asFeSO₄
Fe⁺ is formed by charge transfer from NO to Fe²⁺ 



Fe⁺ has three unpaired electrons (N).

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.

Cell reaction

also we have

Hence for cell reaction

Cl₂(g) is formed at anode and NaOH and H₂ are formed at cathode. Since, cathode and anode are separated. Hence. there is no reaction between the products formed at the cathode and anode. 

Note: but these reaction do not occur

Note: NaCl is neutral pH = 7 initially. After electrolysis , NaOH is formed

Hence, solution become, basic pH >7

Nucleotides are organic molecules that serve as the monomer units for forming the nucleic acid polymers deoxyribonucleic acid and ribonucleic acid, both of which are essential biomolecules within all life-forms on Earth.

The correct answer is 8

Chiral Carbon
Carbon no.1 is chiral carbon so H Show 2 optical isomers
Carbon no.3 is also chiral carbon 
Hence, shows two optical isomers
Carbon 1 & carbon 3 shows G.I. due to 1 stereocenter
Propenyl shows 2 G.I.
Total 8 isomers are shown here.

All four substituent are different so it is chiral compound.

Phenolic — OH does not undergo further substituton. 

Microcosinic salt is used in microcosmicbed test

Fe 2⁺ and Cr³⁺ are oxidised (increase in oxidation number)
O₂, is reduced .

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
 

In the above reaction, appropriate conformer of the given compound is drawn first which has ‘Br’ and ‘H‘ an anti position (I).

Sodium oxide is more basic than Magnesium oxide. A binary compound of an element with oxygen, in which Oxygen atom is electronegative is called an oxide. The oxides which react with water and produce alkali and can neutralise acids forming salt and water are called basic oxides. Na₂O, MgO are basic oxides.

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

Coagulation is the destabilization of Colloids by neutralizing the electric charge of the dispersed phase particles, which results in aggregation of the colloidal particles.

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.