Skip to content
← Chemistry

Chemistry · Class 11 Science

Telangana Tsbie Class 11 Chemistry — Real Previous-Year Papers

with complete answers

Real previous-year board papers, year by year — the official exam pattern, the full question paper, and every question solved the concept-first way. Distinct from the chapter-wise textbook bank.

2018–2026
Years of papers
8
Total Papers
8
Real Board Papers
0
Sample papers
180
Real-paper Q & A
0
Sample-paper Q & A

Real board-paper questions available, by year

—2026Paper not yet available
21 Q2025complete
—2024Paper not yet available
—2023Paper not yet available
33 Q2022complete
—2021Exam cancelled (COVID-19)
21 Q2020complete
—2019Paper not yet available
21 Q2018complete

2026 — Paper not yet available: The Telangana Board (TSBIE) Intermediate 1st Year exam was presumably held this year, but no verified question paper for this subject has been published by any source we check — the official archive and the public past-paper archives. We publish only a paper we can verify against a real printed original — it will appear here once it is.

2024 — Paper not yet available: The Telangana Board (TSBIE) Intermediate 1st Year exam was presumably held this year, but no verified question paper for this subject has been published by any source we check — the official archive and the public past-paper archives. We publish only a paper we can verify against a real printed original — it will appear here once it is.

2023 — Paper not yet available: The Telangana Board (TSBIE) Intermediate 1st Year exam was presumably held this year, but no verified question paper for this subject has been published by any source we check — the official archive and the public past-paper archives. We publish only a paper we can verify against a real printed original — it will appear here once it is.

2021 — Exam cancelled (COVID-19): TSBIE cancelled the Intermediate 1st Year (Class-11) examination in 2021 due to a COVID-19 surge; students were promoted to 2nd Year without sitting it. No annual question paper was conducted that year, so none exists to publish.

2019 — Paper not yet available: The Telangana Board (TSBIE) Intermediate 1st Year exam was presumably held this year, but no verified question paper for this subject has been published by any source we check — the official archive and the public past-paper archives. We publish only a paper we can verify against a real printed original — it will appear here once it is.

Telangana Board of Intermediate Education (Intermediate 1st Year) 2026 · Set ANNUAL

Real board examination

About this paper

The real Class-12 board examination held in 2026. Every question below is solved the concept-first way. Sample papers are labelled honestly — never shown as a past exam.

Total marks
—
Questions
—
Duration
—
Sections
—

The marks / questions / duration above are the official exam pattern. We currently have 21 of this paper’s questions, with 21 fully solved. Questions we couldn’t yet extract or verify are held — never shown as complete.

The question paper

The questions we hold for this paper, laid out by section. Solutions are on the Answers tab.

Board Examination

Chemistry

Telangana Board of Intermediate Education (Intermediate 1st Year) 2026 · Set ANNUAL

Series/Set: ANNUALRoll No. ________
Time Allowed: —Maximum Marks: —
Section A

Q1.
What is Chemical Oxygen Demand (COD)?
[2]
Q2.
What happens when magnesium metal is burnt in air?
[2]
Q3.
Write the relation between Kp and Kc.
[2]
Q4.
State Graham's law of diffusion.
[2]
Q5.
Calculate the weight of 0.1 mole of sodium carbonate.
[2]
Page 1 of 4
Q6.
Write the use of ZSM-5.
[2]
Q7.
Write completely the electronic configurations of K and Rb.
[2]
Q8.
How does graphite function as a lubricant?
[2]
Q9.
What is PAN? What effect is caused by it?
[2]
Q10.
Write the IUPAC names of the two structures shown.
[2]
Section B

Q1.
Explain the hybridization involved in PCl5 molecule.
[4]
Q2.
Explain the formation of Coordinate Covalent Bond with one example.
[4]
Page 2 of 4
Q3.
Explain extensive and intensive properties.
[4]
Q4.
Deduce (a) Boyle's law and (b) Charles' law from Kinetic Gas Equation.
[4]
Q5.
Explain the structure of diborane.
[4]
Q6.
Balance the following redox reaction by ion - electron method: MnO4^- (aq) + SO2 (g) -> Mn²+ (aq) + HSO4^- (aq) (in acidic solution)
[4]
Q7.
Write a few lines on the utility of hydrogen as a fuel.
[4]
Q8.
Write the conjugate acid and conjugate base of each of the following: (a) OH^- (b) H2O (c) HCO3^- (d) H2O2
[4]
Page 3 of 4
Section C

Q1.
What are the postulates of Bohr's model of hydrogen atom? Discuss the importance of this model to explain various series of line spectra in hydrogen atom.
[8]
Q2.
Define IE1 and IE2. Why is IE2 > IE1 for a given atom? Discuss the factors that affect IE of an element.
[8]
Q3.
Describe two methods of preparation of ethane. Give any three reactions of ethane.
[8]
Page 4 of 4