CBSE Class 11 Chemistry Sample Paper Set 45

Chemistry
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Sample Question Papers for Class 11 Chemistry

Access comprehensive sample question papers for Class 11 Chemistry using the CBSE Class 11 Chemistry Sample Paper Set 45. Designed to align with the 2026-27 CBSE academic guidelines, these model papers help students assess their exam readiness and understand current marking schemes.

Practice Class 11 Chemistry Exam Papers

Access the complete sample paper PDF for Class 11 Chemistry below. Regular practice with these targeted mock exams builds familiarity with expected question patterns and chapter weightage to help secure higher marks.

CBSE Class 11 Chemistry Sample Paper Set T. Sample Papers are the very important for every student. The sample papers should be practiced to gain extra marks in examinations. The sample papers have been prepared based on pattern of last year examinations and as per latest changes in the syllabus. Students, teachers and parents can download all CBSE educational material and very well prepared worksheets from this website.  All CBSE educational material is developed by our panel of teachers, have also been submitted by CBSE teachers and students. 

 

Q1. Define Avogadro’s law. 

Q2. Calculate the number of molecules in a drop of water weighing 0.5g. 

Q3. In a Rydberg equation, a spectral line corresponds to n1 = 4 and n2 = 5. To which spectral series and to what region of the electromagnetic spectrum will this line fall? 

Q4. Write the electronic configuration of Cr2+ (z=24) and predict the number electrons having n + l value equal to 3. 

Q5. Which out of F and Cl would have a more negative electron gain enthalpy and why ? 

Q6. Suggest a method to 

(i) purify an impure sample of aniline.

(ii) separate a mixture of liquid A (b.p = 365K) and liquid B(b.p = 356K).

Q7. What is Elution? Give an example of Eluent. 

Q8. Draw and name the shape of SF4 on the basis of VSEPR theory. 

Q9. Dinitrogen and dihydrogen react with each other to produce ammonia 2 according to the following chemical equation;

N2(g) + 3H2(g) → 2NH3(g)
If 4 g of N2 reacts with 2g of H2 then,
(i) which is the limiting reagent?

(ii) Calculate the mass of ammonia produced.

Q10. Calculate the atomic mass (average) of chlorine using the following data: 
Isotope % Natural abundance
35Cl    75.77
37Cl     24.23
 
Q11. Electromagnetic radiation of wavelength 242nm is just sufficient to ionize the sodium atom. Calculate the ionisation energy of sodium in kJ mol-1(h = 6.626 x 10-34Js).
OR
Two particles A and B are in motion. If the wavelength associated with the particle A is 5 x 10-8m, calculate the wavelength of particle B if its momentum is half of A.
 
Q12. The Rf value of X and Y in a mixture determined by TLC in a solvent 2 mixture are 0.56 and 0.41 respectively. If the mixture is separated by paper chromatography using the same solvent mixture on the mobile phase, which of the two components X or Y be extracted out first and why ?
 
Q13. State the following; 
(i) Pauli’s exclusion principle
(ii) Heisenbergs uncertainty principle
 
Q14. Calculate the number of atoms of each type in 5.3g of Na2CO3. (At. mass 2 of Na = 23, C = 12 & O = 16)
 
Q15. Write the general electronic configuration of d-block elements . Give  any two of its general characteristics which are different than those of Representative elements.
 
Q16 Predict the formula of the stable binary compounds that would be formed by By the following pairs of elements;
(i) lithium and oxygen
(ii) magnesium and nitrogen
(iii) aluminium and oxygen
(iv) beryllium and chlorine


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CBSE Class 11 Chemistry Sample Paper Set 45 & Sample Question Papers for Class 11 Chemistry

Access Sample Papers for Class 11 Chemistry

Access structured sample papers for Class 11 Chemistry. Solving the CBSE Class 11 Chemistry Sample Paper Set 45 provided above helps students understand official exam blueprints and tackle anticipated question formats with confidence.

Why Practice Class 11 Chemistry Sample Papers?

  • Exam Blueprint: Understand mark allocations and structural guidelines relevant to Class 11 evaluations.
  • Targeted Improvement: Identify weak areas in Class 11 Chemistry requiring focused revision.
  • Pacing & Precision: Practice mixed question formats to build execution speed and ensure timely paper completion.

How to Analyze Your Performance in CBSE Class 11 Chemistry Sample Paper Set 45

  1. Verify Answers: Compare your responses against professional teacher solutions provided in the sample paper keys.
  2. Error Analysis: Class 11 learners must review incorrect answers carefully to understand underlying mistakes.
  3. Concept Reinforcement: Consult the official NCERT book for Class 11 Chemistry when stuck before re-attempting problems.

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Practicing this Chemistry paper helps in time management and identifying important topics. For Class 11, solving mock papers is the best way to gain confidence and reduce exam-day anxiety.

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