TS Inter 2nd Year Chemistry Answer Key 2025 with Exam Analysis (OUT), Student Reviews
For the exam on March 20, TS Inter 2nd Year Chemistry Answer Key 2025 for all short-answer questions is provided here. TS Inter 2nd Year Chemistry Exam Analysis 2025 is also detailed here.
TS Inter 2nd Year Chemistry Answer Key 2025: The TS Inter 2nd Year Chemistry 2025 exam was conducted on March 20, 2025. Here the TS Inter 2nd Year Chemistry exam analysis and students feedback have been added once the exam was ended. Along with the TS Inter 2nd Year Chemistry exam analysis, the candidates can find out the unofficial answer key for the short-type questions. It will help the candidates to assess their performance level in the TS Inter 12th Chemistry exam.
Also Read | TS Inter Result Expected Release Date 2025
TS Inter 2nd Year Chemistry Answer Key 2025
The following table highlights the TS Inter 2nd Year Chemistry answer key 2025 for the short answer type questions.
Section A - Very Short Answer Type Questions (2 Marks Each)
| Question | TS Inter 2nd Year Commerce 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 Cu2+ are blue in colour, whereas Aqueous Zn2+ colourless. Why? | Aqueous Cu2+ 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 Zn2+ ions are colourless because zinc has a fully filled d-orbital (d10), 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 H2SO4 in a solution containing 98% (w/w) H2SO4 by 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. |
TS Inter 2nd Year Chemistry Exam Analysis 2025: Student Reactions
The student's feedback related to the TS Inter 2nd Year Chemistry exam 2025 will be added here:
Akhil Verma: "The Physical Chemistry section had some complex calculations, but Organic and Inorganic were easier and mostly direct."
Pooja Deshmukh: "Many questions were similar to previous years. The assertion-reason type questions were conceptual but not too tough."
Neeraj Sharma: "Thermodynamics and Electrochemistry had a few unexpected questions. The rest of the paper was balanced."
TS Inter 2nd Year Chemistry Exam Analysis 2025
The below-highlighted table shows the TS Inter 2nd Year Chemistry 2025 exam analysis:
| Parameter | Exam Analysis 2025 |
| Overall difficulty level of the paper | Moderate |
| Difficulty Level of Section A | Easy to Moderate |
| Difficulty Level of Section B | Moderate |
| Difficulty Level of Section C | Moderate |
| Expected Good Score | 62+ |
| Time-Consuming Section (If any) | Section C |
TS Inter 2nd Year Chemistry Question Paper 2025
Candidates can download the TS Inter 2nd Year Chemistry question paper 2025 PDF here:
TS Inter 1st Year Answer Key 2025 Subject-Wise |
| Subject | Answer Key Link |
| Sanskrit | 1st Year TS Inter Sanskrit Answer Key 2025 |
| English | 1st Year TS Inter English Answer Key 2025 |
| Mathematics 1A | TS Inter 1st Year Mathematics 1A Answer Key 2025 |
| Botany | TS Inter 1st Year Botany Answer Key 2025 |
| Mathematics 1B | TS Inter 1st Year Mathematics 1B Answer Key 2025 |
| Zoology | TS Inter 1st Year Zoology Answer Key 2025 |
| Physics | TS Inter 1st Year Physics Answer Key 2025 |
| Economics | TS Inter 1st Year Economics Answer Key 2025 |
| Chemistry | TS Inter 1st Year Chemistry Answer Key 2025 |
| Commerce | TS Inter 1st Year Commerce Answer Key 2025 |
TS Inter 2nd Year Answer Key 2025 Subject-Wise |
| Subject | Answer Key Link |
| Sanskrit | 2nd Year TS Inter Sanskrit Answer Key 2025 |
| English | 2nd Year TS Inter English Answer Key 2025 |
| Mathematics 2A | TS Inter 2nd Year Mathematics 2A Answer Key 2025 |
| Botany | TS Inter 2nd Year Botany Answer Key 2025 |
| Zoology | TS Inter 2nd Year Zoology Answer Key 2025 |
| Mathematics 2B | TS Inter 2nd Year Mathematics 2B Answer Key 2025 |
| Physics | TS Inter 2nd Year Physics Answer Key 2025 |
| Economics | TS Inter 2nd Year Economics Answer Key 2025 |
| Commerce | TS Inter 2nd Year Commerce Answer Key 2025 |
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