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CBSE 2018 Chemistry Question Paper Class 12 - Free PDF

Cbse Previous Year Question Paper

Class 12

Chemistry

2018

Chemistry Question Paper for CBSE Class 12 - 2018 - Free PDF Download

Getting a good score in class 12 Chemistry requires a lot of attentiveness, untiring focus on studies on the part of the student. It is important to have a strategic approach towards your Chemistry exams where extra effort is put in analyzing and understanding what topics are important from the exam point of view. Practice makes perfect, and there is no other better way to practice than to attempt the Previous Year CBSE Class 12 Chemistry Question Paper 2018 PDF with Solutions.

Free PDF Download for CBSE Class 12 Chemistry Question Paper 2018

The CBSE Class 12 Chemistry paper consists of 5 sections which are A, B, C, D, and E. The whole paper is, Content-Based70 Marks and the time duration for this is 3 hours. The detailed question pattern of CBSE Class 12 is mentioned in the below table.

Section	No. of Questions	Marks for Each Question	Total Marks
A	5	1	5 x 1 = 5 Marks
B	5	2	5 x 2 = 10 Marks
C	12	3	12 x 3 = 36 Marks
D	1	4	1 x 4 = 4 Marks
E	3	5	3 x 5 = 15 Marks
Total	26		70 Marks

Chapter-Wise Marks Weightage

According to the students’ survey, questions from organic chemistry were easier when compared to the previous year. Not even one question was asked from the d and f block in the 2018 chemistry question paper. Questions from Surface Chemistry had reasoning types and not even one definition type of questions like the previous year. All the questions were asked from the Class 12 CBSE syllabus of Chemistry.

The marks weightage chapter-wise along with the comparison with last year’s paper is given in the table below.

Topic Name	Marks Weightage (2017)	Marks Weightage (2018)
The Solid State	2	1+3=4
Electrochemistry	2+3=5	3+5=8
Solutions	5	2+3=5
Surface Chemistry	1+3=4	1+3=4
Chemical Kinetics	1+3=4	2+3=5
The p-Block Elements	1+2+3 =6	2+2 + 5 = 9
General Principles and Processes of Isolation of Elements	3	3
Coordination Compounds	2+3 =5	1+3 = 4
The d- and f-Block Elements	5	–
Alcohols, Phenols, and Ethers	1+2 =3	1+ 3 = 4
Haloalkanes and Haloarenes	1+3 =4	1+3 = 4
Amines	3	5
Aldehydes, Ketones and Carboxylic Acids	3+5=8	2+3=5
Polymers	3	4
Biomolecules	4	3
Chemistry in Everyday Life	3	3

Chemistry Practical Paper:

Volumetric Analysis	8 marks
Salt Analysis	8 marks
Content-Based Experiment	6 marks
Project Work	4 marks
Class Record and Viva	4 marks
Total	30 marks

Overview of CBSE Class 12 Chemistry Exam 2018

Question Paper Format:

The question paper pattern was similar to the CBSE Class 12 Chemistry Sample Paper 2018.

The question paper consisted of a total of 26 questions.
Questions number 1 to 5 are very short answer questions that carry 1 mark each.
Questions number 6 to 10 are short answer questions that carry 2 marks each.
Questions number 11 to 22 are again short answer questions that carry 3 marks each.
Question number 23 is a value-based question carrying 4 marks.
Questions number 24 to 26 are long answer questions that carry 5 marks each.

There was no overall choice in the paper. However, the paper was provided with an internal choice in one question of 2 marks weightage, one question of 3 marks weightage, and all the three questions of 5 marks weightage.

Section A

There were 5 questions each carrying 1 mark.
Total Marks: 5

Section B

There were 5 questions each carrying 2 marks.
Total Marks: 10

Section C

There were 12 questions each carrying 3 marks.
Total Marks: 36

Section D

There was 1 question carrying 4 marks.
Total Marks: 4

Section E

There were 3 questions each carrying 5 marks.
Total Marks: 15

Topics with Maximum Questions

The maximum of the questions was from Organic Chemistry but the difficulty level of questions asked from Inorganic Chemistry was higher.

Chapter Name	Weightage of Marks (in 2018 Board Paper)	Difficulty Level
Solid States	4	Moderate
Solutions	5	Moderate
Electrochemistry	5	Moderate to Difficult
Chemical Kinetics	5	Moderate
Surface Chemistry	4	Moderate
General Principles and Process of Isolation of Elements	3	Moderate
P Block Elements	7	Moderate
D Block Elements	5	Moderate
Coordination Compounds	4	Moderate
Haloalkanes and Haloarenes	3	Moderate
Alcohols, Phenols, and Ethers	5	Moderate
Aldehydes, Ketones and Carboxylic Acids	6	Moderate
Organic Compounds	4	Moderate
Biomolecules	3	Moderate
Polymers	3	Moderate
Chemistry in Everyday Life	4	Moderate to Difficult

Difficulty Level

The difficulty level of the question paper was not higher than the question papers of the last 4 to 5 years. Some of the questions for the indirect application need higher-order thinking abilities.

Numerical problems were from NCERT book-based but were not given directly as mentioned in the book, unlike, it used to be till last year. Numerical problems on Electrochemistry, the optional part, were a bit confusing for average students.

Difficulty Level	Medium
Toughest Part	Inorganic Chemistry
Easy Part	Organic chemistry
Average Expected Marks	55
Level Of Numerical Based Questions	Moderate

Test Pattern as Compared to Previous Year’s Papers

Overall the question paper was equally balanced, it wasn’t that difficult to score passing marks for weak students, but also not that easy to score above 90.

Previous Year Question Paper Vs Current Question Paper

There were no questions asked on the chapter d and f block this year
Question from Organic chemistry was easier compared to last year
The value-based question was easier than formula-based questions this year
Surface chemistry had reason typed questions this year and not on definitions and examples like the previous year
The level of numerical based questions was the same as last year but it was a bit tricky

Why Vedantu?

We are one among the new-age online teaching schools which offer uber ways to study live with India’s most qualified lecturers across the country. We provide online education which was formed by joint efforts of IITian graduates trying to maximize interactive learning sessions between a teacher and a student. To get admission into a good college, you will need to have a good grip on your core subjects. Every college is looking for students who are competitive enough and are proactive as well. Vedantu provides Chemistry Sample paper Class 12 with solutions 2018 in a detailed and step-by-step, Content-Based manner.

FAQs on CBSE 2018 Chemistry Question Paper Class 12 - Free PDF

1. How to score well in the Organic Chemistry portion of the CBSE Class 12 paper?

Your basics of Organic Chemistry should be clear. The clarity in Organic Chemistry comes by revision. Make sure you revise as many times as possible. The Organic Chemistry part is mostly around 28-30 marks in the board exam. You should know the chemical properties of Alcohol, Phenols & Ethers. Revise important reactions like Wolf-Kishner, Williamson reaction, and Clemmensen Reduction reaction multiple times, as at least one of them is asked in all the papers. Your basics of oxidative reactions and reductive reactions should be clear.

2. How to score well in the Physical Chemistry portion of the CBSE Class 12 paper?

The Physical Chemistry portion includes chapters like Electrochemistry and Chemical Kinetics. If you logically understand the technicalities of the topics given in these chapters you can easily score high marks. You must have clarity on the theories. Try to note down the formulas given in Chemical Kinetics and have a look at them every day. This way you can easily remember them. Go through the exercises and questions given at the back of the chapters. Physical Chemistry is about remembering facts, making a list of those chemical facts and going through them once in a while will help.

3. How to score well in the Inorganic Chemistry part of the CBSE Class 12 paper?

Have the periodic table on your fingertips. The periodic table is the backbone of Inorganic Chemistry. Stuff like an atomic number and atomic mass of elements should be known to you. Be clear about the position of p-block, s-block,f-block, and d-block in the periodic table. Have good knowledge of the trends in the periodic table. For instance, you should know what happens to the electronegativity of an element when moving from left to right or up to down in the periodic table. The physical and chemical properties of an element are dependent on its valency, make sure you know the valency of the elements.

4. Where can you find resources for CBSE Class 12 Chemistry?

Vedantu offers a wide range of resources for CBSE Class 12 Chemistry. Vedantu offers individual chapter overviews. Reading an overview of a chapter helps to understand the chapter, its outline, and what to expect from it. You can also find paper solutions in pdf format, you can easily download them and get access to the material prepared by subject experts. Other than that, you can also find previous year’s papers and sample papers on the site. Vedantu also offers live masterclasses on Chemistry, where subject experts share their expertise.

5. How do I keep track of all the chemistry syllabus for CBSE class 12?

The syllabus of class 12 CBSE Chemistry is vast. You should always make notes of all that you have learned. Use your notes and flashcards to keep track of your revision. Make mind maps of all the parts of Chemistry. Have a proper schedule of all of your chapters to revise. There are many apps on the internet that can help you keep track, try to use them. Have a specific time slot dedicated to solving practice papers. Keep track of the marks you score in them.download free study material from Vedantu site or an app.