CBSE Class 11 Chemistry Question Paper Set U Solved

Access and download CBSE Class 11 Chemistry Question Paper Set U Solved, carefully designed as per the latest 2025-26 examination guidelines issued by CBSE, NCERT, and KVS. These Class 11 Chemistry previous year question papers include detailed solutions, helping students to assess their performance and identify and improve key areas before the final exams.

Solved Chemistry Question Papers for Class 11

Practicing these Class 11 Chemistry question papers is the best way to understand the actual exam pattern and marking scheme. By solving these papers under timed conditions, Class 11 students can improve their speed and accuracy. Download the full CBSE Class 11 Chemistry Question Paper Set U Solved to begin your self-assessment today.

Chemistry Class 11 Question Paper PDF with Solutions

1 Write the IUPAC name and symbol of the element with atomic number 104.
 
2 Draw Lewis dot structure for CCl4
 
3 Give two instances of green chemistry in everyday life. 
 
4 Draw the boundary surface following orbitals a) 2pz b) 3dxy 
 
5 Why do atomic masses of most elements in atomic mass unit involve fractions? 
 
6 a) Define mole fraction
b) How is vapour density of a gas related to its molecular mass?
 
7 Calculate the frequency and wave number of a radiation having wavelength 600nm. 
 
8 What are isoelectronic species? Name one anion and one cation isoelectronic with argon [Ar].
 
9 Differentiate between photochemical and classical smog[2points]

OR
 
What do you understand by greenhouse effect? Name any two gases responsible for green house effect.
 
10 Write the general outer electronic configuration of d-block elements. Also mention any two properties of these elements.
 
11 Name the chemical responsible for ozone depletion. Give any two harmful effects of ozone depletion.
 
12 Define lattice enthalpy. Use Lewis symbol to show the electron transfer between calcium and oxygen to form calcium oxide.
 
13 a) What is eutrophication?
b) What is acid rain? How is it harmful to the environment?
 
14 What do you understand by the term limiting reagent? 1.2g of magnesium was dropped in 100ml of 0.1M HCl solution. Identify the limiting reagent and calculate the volume of hydrogen obtained at STP. [Mg=24, H=1, Cl=35.5]
 
15 a) How is formal charge of an atom in a molecule calculated?
b) What do you understand by the term resonance? Draw resonating structures of carbonate ion.
 
16 The first & second
CBSE Class 11 Chemistry Question Paper Set N Solved 1
 
Identify the element which is likely to be
i. A most reactive non-metal
ii. A noble gas
iii. A most reactive metal
 
17 Light of wavelength 400nm strikes a certain metal which has a photoelectric work function of 2.13eV. Find out the maximum kinetic energy of the photoelectrons.
[1eV=1.6x10-19J, h=6.626x10-34Js, c=3x108]
 
OR
 
a) Calculate the de Broglie wavelength of a bullet of mass 2.2 x 10-3 Kg fired with a velocity of 300 m/s.[h=6.626x10-34Js]
b) Determine the wavenumber for the transition of an electron from n=3 to n=2 in a hydrogen atom.
 
18 Account for the following
a) Anions are larger in size than their parent atom
b) Nitrogen has higher first ionization enthalpy than oxygen
c) Electron gain enthalpy of fluorine is less negative than chlorine
 
 

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CBSE Class 11 Chemistry Question Paper Set U Solved

To understand the types of questions asked in past examinations, it is very important for Class 11 students to solve the CBSE Class 11 Chemistry Question Paper Set U Solved provided above. You can easily download these past papers for Class 11 Chemistry in PDF format for the last 10 years. By practicing these actual exam questions you will gain an understanding of the difficulty level and the variety of topics covered over the years. By solving these Previous Year Papers (PYPs) you will understand both descriptive and MCQ questions in your final tests.

Importance of solving CBSE Class 11 Chemistry Question Paper Set U Solved

Regularly practicing CBSE Class 11 Chemistry Question Paper Set U Solved is the best way to improve your score in Class 11 Chemistry. These papers will give you details of the marking scheme and the paper structure used by the CBSE. By regularly attempting these under actual exam conditions at home, you can slowly improve your time management skills, which will help you to complete your Chemistry paper within the allowed duration.

Benefits of downloading CBSE Class 11 Question Papers

Having the CBSE Class 11 Chemistry Question Paper Set U Solved in PDF format allows you to revise key concepts anywhere, even without an internet connection. These sets are a reliable tool to practice numerical problems and understand the correct approach to all types of answers. After solving the questions, you should compare your work with the solutions provided by our teachers. Along with these papers, students should always solve the Class 11 Chemistry Sample Papers and MCQ tests on studiestoday.com for a complete revision.

Where can I download the official PDF for CBSE Class 11 Chemistry Question Paper Set U Solved?

The CBSE Class 11 Chemistry Question Paper Set U Solved is available for download on StudiesToday.com. It includes complete set with all sections so that Class 11 students can practice with the exact same paper that came in the CBSE exams.

Are the solutions for CBSE Class 11 Chemistry Question Paper Set U Solved based on the official CBSE marking scheme?

Yes, the solutions for CBSE Class 11 Chemistry Question Paper Set U Solved are prepared by subject matter experts as per official marking scheme. Class 11 students will understand the structure of answers and 'step-marks' methodology Chemistry.

How does solving CBSE Class 11 Chemistry Question Paper Set U Solved help in preparing for the 2026 exams?

Solving previous year papers like CBSE Class 11 Chemistry Question Paper Set U Solved is important to understand repeat themes and question difficulty levels of Chemistry. It helps Class 11 students to test their time management skills too.

Can I access CBSE Class 11 Chemistry Question Paper Set U Solved in different languages?

Yes, where applicable, CBSE Class 11 Chemistry Question Paper Set U Solved is available in both English and Hindi mediums. All students from Class 11 can access Chemistry study material in their preferred language.

Is there a charge to download the CBSE Class 11 Chemistry solved papers?

No, all previous year question papers on StudiesToday, including CBSE Class 11 Chemistry Question Paper Set U Solved, are provided free of charge in mobile-friendly PDF.