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Chemistry · Class 12 Science

Telangana Tsbie Class 12 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

21 Q2026complete
21 Q2025complete
21 Q2024complete
21 Q2023complete
33 Q2022complete
—2021Not available
21 Q2020complete
21 Q2019complete
21 Q2018complete

Telangana Board of Intermediate Education 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
60
Questions
21
Duration
180 min
Sections
3

The marks / questions / duration above are the official exam pattern. We currently have 21 of this paper’s questions (100% of the full paper), with 21 fully solved. Questions we couldn’t yet extract or verify are held — never shown as complete.

Sections & marks

SectionTypeQuestionsMarks eachTotal
ASection Avery_short10220
BSection Bshort8432
CSection Clong3824
Total2160

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 2026 · Set ANNUAL

Series/Set: ANNUALRoll No. ________
Time Allowed: 3 hoursMaximum Marks: 60

General Instructions

  1. This question paper contains 21 questions divided into 3 sections — A, B, C.
  2. Section A comprises 10 questions of 2 marks each (very_short).
  3. Section B comprises 8 questions of 4 marks each (short).
  4. Section C comprises 3 questions of 8 marks each (long).

Above is the official exam pattern. The questions printed below are those we currently hold for this paper.

Section A

very_short · 2 marks each · 10 of 10 shown

Q1.
State Henry's law.
[2]
Q2.
What is a primary battery? Give one example.
[2]
Q3.
What is the role of cryolite in the metallurgy of aluminium?
[2]
Q4.
Nitrogen molecule is highly stable. Why?
[2]
Q5.
Why Zn^2+ is diamagnetic whereas Mn^2+ is paramagnetic?
[2]
Page 1 of 4
Q6.
What is Ziegler-Natta catalyst?
[2]
Q7.
What is PHBV? How is it useful to man?
[2]
Q8.
What are antacids? Give example.
[2]
Q9.
What are artificial sweetening agents? Give one example.
[2]
Q10.
Write equation for Carbylamine reaction of any one aliphatic amine.
[2]
Section B

short · 4 marks each · 8 of 8 shown

Q1.
Classify each of the following as either a p-type or an n-type semiconductor. (a) Ge doped with In (b) Si doped with B
[4]
Q2.
A solution of sucrose in water is labelled as 20% w/w. What would be the mole fraction of each component in the solution?
[4]
Page 2 of 4
Q3.
What is catalysis? How is catalysis classified? Give one example for each type of catalysis.
[4]
Q4.
Explain the purification of sulphide ore by froth floatation method.
[4]
Q5.
Explain the structures of (a) XeF2 and (b) XeF4
[4]
Q6.
Explain Werner's theory of coordination compounds with suitable examples.
[4]
Q7.
What are hormones? Give one example for each of the following- (a) Steroid hormones (b) Polypeptide hormones and (c) Amino acid derivatives
[4]
Q8.
(a) What are ambident nucleophiles? (b) What are Enantiomers?
[4]
Page 3 of 4
Section C

long · 8 marks each · 3 of 3 shown

Q1.
(a) State and explain Kohlrausch's law of independent migration of ions. (b) What is the "molecularity" of a reaction? How is it different from the 'order' of a reaction? Name one bimolecular and one trimolecular gaseous reaction.
[8]
Q2.
How is ozone prepared from oxygen? Explain its reaction with - (a) C2H4 (b) KI (c) Hg (d) PbS
[8]
Q3.
Describe the following - (a) Acetylation (b) Cannizzaro reaction (c) Cross aldol condensation (d) Decarboxylation
[8]
Page 4 of 4