The board aims to promote understanding of basic facts and concepts. However, examinations become the medium to determine the learning ability of the student. T is true that marks do not necessary reflect the true knowledge potential of the student, but in a country as big as India, it is difficult to implement a purely continuous assessment based rule for scoring marks. Students whose mathematical calculations are not accurate or who are weak in mathematics should concentrate more on Organic Chemistry. It is a very scoring subject. As the student can see since past few years, there has been seen that all questions are directly or indirectly asked from the NCERT books. Almost 50% of the question paper is from the textbook itself therefore NCERT books should be read in a thorough manner, and one should remember it very well that there is no substitute to hard work. If you want to score good marks organic chemistry should be very well read.

1.PREPARE from NCERT textbooks

In order to ace chemistry exams, cover all topics from ncert books. Cover all topics including diagrams. Solve all the exercise questions. Mark the important ones so that while revising it becomes easier and immediately you can recall what you have studied. Had written notes on key topics is also advisable.

Check important topics:

After finishing the entire course, students must concentrate on focused studies and multiple revisions. Maximum weightage topic should be revised first and accordingly followed by low scoring topics.

2.Practice questions/topics from previous year paper and sample papers:

In every board exam, there are few questions or topics which are asked year after year with little to no changes. If the student is under time crunch, then try to work on such topics and questions only with multiple revisions. So practice as many previous CBSE 12th Chemistry question papers as possible. To understand the type of question, topic and format another source is the CBSE sample. Practice from this source is also advised. Make sure you highlight important topics and questions so while revising you can just scan through it, thus saving a lot of your time and also it is advised to revise in this way if an issue of time crunch arises in anyway. In this case, you can visit Doubtnut.com where you can get access to previous years’ question papers that prove to be quite advantage to you.

3.Practice questions based on numerical, name reactions and products

In Physical Chemistry, practice more numerical to score better, make short nots on important topics. Make a formula list for physical chemistry.

In Organic Chemistry, NCERT specific reading is advisable. There are topics such as Aldehydes, Ketones, and Carboxylic Acids, write a short note on known Name reactions. Weightage for organic chemistry is high for which students should concentrate on solving more numerical.

In Inorganic Chemistry, topics like p-Block Elements will help you in high scoring of marks. Spend more time on Products of the given reactions, properties of hydrides and anomalous behavior of second-period elements. It is recommended to not to read beyond NCERT.

The major constraint is time while writing any examination. When you are attempting a descriptive question it may seem feasible in the moment as it not only does it tend to take up a lot of time but it also does not guarantee full marks at the end of it as you can always miss out on some keywords or important points hence also compromising on other answers.

1. Writing skills are very important

A lot of content is available to write within the given span of time. A bullet format precise form is recommended as it becomes even easier for the examiner to correct papers. Practice by writing will not only boost your confidence but also enables you to understand the keywords. Also highlight such key words while answering questions in the exam.

For example, while writing Organic Chemistry answer, mention the names of reactants and products. This will increase the credibility of the solution. Neat work is a non-negotiable trait that always benefits a student.Descriptive and long answers type questions can be answered in bullet form followed by labelled diagrams.Comparative analysis presented in a tabulated format could make your answer script stand out from the rest. Little things like this should betaken into account.

1. Preparation of last three chapters

Last three chapters are usually neglected by the students. The topics are ‘Biomolecules’, ‘Polymers’ and ‘Chemistry in everyday life’. These residual chapters carrying 10 marks. These three chapters are potentially very strong scoring. Students can prepare notes in tabular or bullet form and can easily revise during last week of the exam, thereby leaving ample amount of time for complex topics.

1. Time management and Self Evaluation

It is natural to build anxiety during preparation. The student needs to focus on the weakness rather than feeling tired or guilty. Constant small breaks can be taken while having such mood swings.Time management will help you have a buffer time of around 10-15 min. Initially try to go through the paper. Strategize which ones to attempt and which one to leave and write accordingly.

Can you solve this question: Silver crystalilises in a fcc lattice. The edge length of its unit is 4.077xx10^(-8)xxcm and its density is 10.5g cm^(-3). Calculate on this basis the atomic mass of silver (N_(A)=6.02xx10^(23) “mol”^(-1))