TS Inter Chemistry Answer Key 2025 (Available): 2nd Year Exam Analysis

TS Inter Chemistry Answer Key 2025: 2nd Year Exam Analysis

Check TS Inter Chemistry Answer Key 2025 Here (Image Credits: pexels.com).

TS Inter Chemistry Answer Key 2025: The Telangana State Board of Intermediate Education (TSBIE) held the Telangana Intermediate Chemistry Paper-II 2025 examination today, March 20, 2025. The exam was held from 9 AM to 12 PM. The TS Inter Chemistry 2nd Year Question Paper had a weightage of 60 marks. Students must score at least 21 marks to pass the examination. Students who appeared for the TS Intermediate 2nd Year Chemistry Paper-II examination check the TS Inter Chemistry Answer Key 2025 available here with the TS Inter 2nd Year Chemistry Exam Analysis 2025.

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TS Inter Chemistry Answer Key 2025

Students can check the TS Inter 2nd Year Chemistry Paper II Answer Key 2025 available in the table below.

Question	TS Inter 2nd Year Chemistry Answer Key 2025
1. State Faraday's first law of electrolysis.	Faraday's First Law of Electrolysis states that the amount of substance deposited or liberated at an electrode during electrolysis is directly proportional to the quantity of electricity passed through the electrolyte. Mathematically, it is expressed as m ∝ Q, where m is the mass of the substance and Q is the electric charge.
2. What is vulcanization of rubber?	Vulcanization of rubber is a chemical process that involves heating natural rubber with sulfur to improve its strength, elasticity, and durability. This process creates cross-links between polymer chains, making the rubber more resistant to heat, wear, and deformation.
3. What are antiseptics? Give example.	Antiseptics are substances that prevent the growth of microorganisms, such as bacteria, on living tissues, thereby reducing the risk of infection. An example is hydrogen peroxide, commonly used to clean wounds.
4. What is blister copper? Why is it so-called?	Blister copper is an impure form of copper, typically 96-99% pure, obtained during the smelting process of copper ores. It is so called due to its blistered surface, caused by sulfur dioxide gas escaping and forming bubbles as the molten copper cools.
5. What are food preservatives? Give example.	Food preservatives are substances added to food to prevent spoilage by inhibiting the growth of microorganisms or delaying chemical changes like oxidation. An example is sodium benzoate, commonly used in soft drinks and acidic foods.
6. Aqueous Cu ²⁺are blue in colour, whereas Aqueous Zn ²⁺colourless. Why?	Aqueous Cu ²⁺ions are blue due to the d-d electron transitions in the partially filled d-orbitals of copper, absorbing light in the red-orange region. Aqueous Zn ²⁺ions are colourless because zinc has a fully filled d-orbital (d ¹⁰), preventing such transitions.
7. What is Ziegler-Natta catalyst?	The Ziegler-Natta catalyst is a combination of a transition metal compound, typically titanium (like TiCl₄), and an organometallic compound, such as triethylaluminum, used to polymerize alkenes. It enables the controlled formation of polymers like polyethylene and polypropylene with specific structures.
8. Ammonia is a good complexing agent - explain with an example.	Ammonia (NH₃) is a good complexing agent because it can donate its lone pair of electrons to form coordinate bonds with metal ions, creating stable complexes. For example, it reacts with Cu²⁺ ions to form the deep blue [Cu(NH₃)₄]²⁺ complex in aqueous solution.
9. Calculate the mole fraction of H ₂SO ₄in a solution containing 98% (w/w) H ₂SO ₄by mass.	The mole fraction of H₂SO₄ is 1 / (1 + 0.111) ≈ 0.9.
10. Write equations for the Carbylamine reaction of anyone aliphatic amine.	The Carbylamine reaction of ethylamine (CH₃CH₂NH₂) with chloroform (CHCl₃) and potassium hydroxide (KOH) produces ethyl isocyanide: CH₃CH₂NH₂ + CHCl₃ + 3KOH → CH₃CH₂NC + 3KCl + 3H₂O.

The TS Inter 2nd Year Chemistry Answer Key 2025 available here is taken from the collegedekho.com.

TS Inter 2nd Year Chemistry Exam Analysis 2025

Check the detailed TS Inter 2nd Year Chemistry Paper 2 Exam Analysis 2025 is given in the table below.

Particulars	TS Inter 2nd Year Chemistry Exam Analysis 2025
Overall Exam Difficulty Level	Moderate
Difficulty Level of Section A	Easy to Moderate
Difficulty Level of Section B	Moderate
Difficulty Level of Section C	Moderate
Expected Good Score	60+
Was the paper lengthy and time-consuming?	Section C was time consuming.

The TS Inter Chemistry Answer Key 2025 and the analysis available here are unofficial and available here only for students' reference. Visit the official website of the Telangana Board for more information on the TS Intermediate 2nd Year Examination 2025.

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