CBSE Class 12 Chemistry Sample Paper 2020 Set 02 Solved

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Official CBSE Practice Papers for Class 12 Chemistry

Access comprehensive sample question papers for Class 12 Chemistry using the CBSE Class 12 Chemistry Sample Paper 2020 Set 02 Solved. Designed to align with the 2026-27 CBSE academic guidelines, these model papers help students assess their exam readiness and understand current marking schemes.

Solved Model Papers for Chemistry

View or download the dedicated CBSE Class 12 Chemistry Sample Paper 2020 Set 02 Solved resource below. Engaging with these sample papers under timed conditions ensures continuous academic progress and mastery of the 2026-27 exam format.

CBSE Class 12 Chemistry Sample Paper 2020 Solved Set B. CBSE issues sample papers every year for students for Class 12 board exams. Students should solve the CBSE issued sample papers to understand the pattern of the question paper which will come in class 12 board exams this year. The sample papers have been provided with marking scheme. It’s always recommended to practice as many CBSE sample papers as possible before the board examinations. Sample papers should be always practiced in examination condition at home or school and the student should show the answers to teachers for checking or compare with the answers provided. Students can download the sample papers in pdf format free and score better marks in examinations. Refer to other links too for latest sample papers.

1 Why is GaAs used to prepare transistor chips?

2 When acidulated water ( dil. H2SO4 solution) is electrolysed, will the pH of the solution be affected ? Justify

3 Give the monomer of the polymer used to coat utensils rendering them with non-stick property.

4 Out of Valium and Ranitidine, which drug is to be prescribed to a person suffering from agitation and state of mental disturbance? What are such drugs called.

5 Using example describe Gabriel phthalimide synthesis.

6 Following reaction takes place in one step:-

2NO (g) + O2(g) → 2NO2(g)

How will the rate of above reaction change if the volume of the reaction vessel is diminished to 1/3 of its original volume ?

What will be the change in the order of the reaction .

7 Consider the following molecules:

a) The rate of reaction of hydrolysis of B with dil. NaOH , is much higher than that of A. Explain

b) Give the product of reaction when both A and B are subjected to Bromine gas in presence of anhy. FeCl3

Class 12 Chemistry Sample Paper 2020 Solved Set B

8 a) Convert Acetaldehyde to Formaldehyde in minimum number of steps.

b) Which reagent is used to distinguish between Formic acid and Benzoic acid ?

9 Aqueous solutions of K4[Fe(CN)6] and FeCl3 mix together to produce a blue colored complex of Iron hexacyanoferrate(II) . Both the solutions are separated by a Semi Permeable Membrane as shown in the following diagram:

a) Which side will the formation of blue color take place? Also give reason.
b) What is such a phenomenon known as and why does it occur?
CBSE-Class-12-Chemistry-Sample-Paper-2020-Solved-Set-B1
 
10 A compound C3H8O exist in two positional isomers, both of which differ in their acidic properties and reactivity towards a mixture of conc. HCl and anhy. ZnCl2. Identify both the isomers and explain the observations.
 
OR
The manner in which NaOH reacts with Phenol is different from its reaction with Propanol.What does this difference indicate? Also explain the reason for the same.
 
11 Lithium metal is used in the production of synthetic vitamin A and as a reducing agent . It exists with a density of 0.53g/cm3 and edge length of 3.5 Ao. Calculate the radius of Lithium atom . [ At. mass Li= 6.94u]
 
12 a) How are agonists different from antagonists ?
 
b) What is Aspartame ? Give any one drawback of using this compound .
 
c) Give the compound added to soaps to impart antiseptic properties.
 
OR
a) Give the components of Dettol, which provide its antiseptic properties.
 
b) Give a drug that can act as both analgesic and antipyretic.
 
c) Differentiate between broad spectrum antibiotics and narrow spectrum antibiotics.


Please click the link below to download CBSE Class 12 Chemistry Sample Paper 2020 Solved Set B

Free study material for Chemistry

Model Practice Papers & Solutions for Class 12 Chemistry

Get Started with CBSE Class 12 Chemistry Sample Paper 2020 Set 02 Solved (CBSE)

Access structured sample papers for Class 12 Chemistry. Solving the CBSE Class 12 Chemistry Sample Paper 2020 Set 02 Solved provided above helps students understand official exam blueprints and tackle anticipated question formats with confidence.

Maximize Your Scores with Model Papers

  • Curriculum Insights: Clarify chapter-wise weightage rules and question trends across Class 12.
  • Gap Analysis: Check performance drops across sets to isolate specific Class 12 Chemistry topics needing extra attention.
  • Time Efficiency: Working through objective and descriptive problems builds critical pacing to finish exams comfortably.

Steps to Follow After Completing CBSE Class 12 Chemistry Sample Paper 2020 Set 02 Solved

  1. Self-Evaluation: Score your answers using official guidance to track your academic progress.
  2. Mistake Correction: Class 12 pupils must re-solve questions answered incorrectly to master the correct method.
  3. Continuous Practice: Take additional Chemistry sample modules online to maximize preparedness for CBSE evaluations.

FAQs

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Are solutions provided for CBSE Class 12 Chemistry Sample Paper 2020 Set 02 Solved?

Yes, CBSE Class 12 Chemistry Sample Paper 2020 Set 02 Solved comes with detailed, teacher-verified solutions. We have provided step-by-step answers for Chemistry to help students of Class 12 understand correct methodology and marking scheme.

How can practicing CBSE Class 12 Chemistry Sample Paper 2020 Set 02 Solved help in exam preparation?

Practicing this Chemistry paper helps in time management and identifying important topics. For Class 12, solving mock papers is the best way to gain confidence and reduce exam-day anxiety.

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