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CBSE Class 12 Chemistry Board Paper Analysis and Preparation Tips

This year, Central Board of Secondary Education conducted its CBSE Class 12 Chemistry examination on 12th March 2015. Since Chemistry is considered to be one of the best options to score better and achieve more percentage, hence CBSE Chemistry 12th board examination remains to be crucial for all Science stream candidates.

At askIITians, we help analyze you with CBSE class 12 Chemistry paper.

KEY HIGHLIGHTS

  • Difficulty Level? Easy

  • Was it a Lengthy Paper? Since, reasoning questions and Number of reactions were high, hence the paper was lengthy.

  • Was Tricky Questions Asked? Set I, Question numbers 22, 27 (first choice), 28 (first choice (b) part), 29 (first choice (b) part (ii)) was such questions which were actually Tricky and a thorough knowledge was required to answer the same.

  • Out of Syllabus Question? None of the questions were out of syllabus and no errors at all.

  • Organic Chemistry was given much weightage in comparison to Inorganic and Physical Chemistry

Section Vs Marks

                                                

Chapter Vs No of Questions

                         

Section Vs No of Questions

                                                         

Tips & Tricks

Make yourself abreast with the latest patterns of questions asked in the CBSE Examinations. Our Tips & Tricks section will help you prepare chemistry in a Better way.

How to prepare chemistry for board exams?

This is a usual question in almost every student of science. To study chemistry is slightly boring and confusing for most of the students.

It is a very common assumption that chemistry is matter of mugging up, an all one need to do it to just remember all the formulas and chemical equation and that’s it!!!

But is it really so????

The answer is NO!

Chemistry just like any other subject of science, do have some basic concepts. One you understand these basic concepts, things will become easy for you.

Here are the few tips in order to study chemistry.

Organic Chemistry:

  • Name Reactions: Every chapter of organic chemistry do have some name reactions. Name reactions are those reactions which are named after the scientist who discovered that. For example: Sandmeyer reaction & Williamson synthesis. You need to understand the concepts of these all name reactions as almost every time you will find some direct or indirect question on them in board paper.

  • Conversions: These are the problems in which you will ask to convert one compounds into another one using chemical reactions. This can be solved only when you have studies all the reactions properly and you know how to apply them, So, understand the concept or mechanism of the reactions rather than just learning the reaction as such.

  • Road Map type problems: These are the problem with highest marks in paper. In this problem some properties and formulas of compounds would be given to you and you will be asked to identify the compound as well as the reactions. This again can be solved only if you know all the concepts of organic chemistry and also how to apply them

  • Chapters are interlinked: Chapters of organic chemistry are highly interlinked. You will find the chemical property of one compound being used as a method for preparation of other compound. So, do not skip any chapter and do remember than one reaction which you study in one chapter would help you in the next chapter also

  • Understand the mechanisms of reactions: There is a mechanism for every reaching on organic chemistry. If you are able to understand the mechanism properly you need not to remember all the reactions, you can make them by yourself using the reaction mechanism.

Physical Chemistry:

  • Application of mathematics: Just like physics, physical chemistry is also an application of mathematics specially calculus

  • Remember the formulas: You will find lots of numerical problems here so identify the useful formulas and remember them. They will be useful while solving any numerical

  • Understand the Derivations: Just like physics, in physical chemistry also there are number of derivations which you need to keep in mind as they are asked in exams

  • Related to Physics: Some of the chapters like gaseous state and thermodynamics are common in Physics and Physical Chemistry. You need to keep in mind that what are the difference between the thermodynamics of chemistry and thermodynamics of physics and so with gaseous state also

  • Inter-related topics: Topics like Electrochemistry, Redox reactions, Equilibrium are interrelated to each other. Similarly s,p,d& f blocks elements and Periodicity In properties are related to each other.

Inorganic Chemistry

  • Easy as compare to Physical & Organic Chemistry: Inorganic chemistry is easy as compare to physical chemistry & organic chemistry so it is best to start study with inorganic chemistry

  • Inter-related topics: Topics like s, p, d & f blocks elements and Periodicity In properties are related to each other

  • Understand the concepts: Most of the chapters have almost similar concept. All you need to do is to understand them clearly. For example P, d & f block elements have application of common concepts known as shielding effect.

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