Expert Tips to ace Class 12 Chemistry

Hey Guys!

Nervous about the CBSE Chemistry board exam on the 11th of March? We hope you are on the final revision stage right now and are not submitting to last minute panic attacks. Here are some tips to focus on before going into the exam hall 5 days later.

 How to Revise:–

• Don’t take stress.

• Identify your grey-areas in the subject and try to work on it if only you are thorough with the other chapters.

• Do not study anything new before examination.

• Divide your time in accordance with the weightage of chapters.

• Start revising your notes and keep a glossary of important words, formulae, tables, reactions.

• Be well-versed with the format of paper and marks allotted to each chapter.

• Practice CBSE sample papers and previous years’ board papers.

• Take at least one mock test on your own by randomly selecting a sample test paper. Stick to the exact duration of the test. Do not take breaks in between. Try to emulate the exam conditions as far as possible.

• Go through the NCERT solutions thoroughly.

• Physical chemistry: Revise the laws, postulates, formulae and graphs

• Inorganic chemistry: Revise the structures, oxidation states, chemical reactions and periodic trends.

• Organic chemistry: Revise name reactions, distinction tests and IUPAC nomenclature.

• Clear your doubts related to any topic immediately. You can always post your doubts on ‘Ask and Answer’ on Meritnation.com and get expert help. Remember “Expert help is just a click away’.

During the Examination:–

•  Read the question paper thoroughly in the initial 15 minutes.

• Mark the questions you are confident of answering correctly.

• Write the correct question numbers for the answers.

• Do not leave sheets blank in between your answers.

• In the answer-sheet write the answers of all questions of one section at one place. Also, all the parts of a question need to be answered in sequence.

• Avoid leaving any answer blank. Try to write the closest answer you remember.

• Draw lines for rough work on the right hand side of the answer sheet. This would minimize the chances of errors in noting down the answer (especially the numeric values) from rough calculations done on some other page of the answer sheet.

• In the answer sheet, use black or blue coloured ink only.

• Underline the keywords in the answer.

• All equations must be balanced. A reaction, which is not balanced, is not an equation.

• Reasoning questions carry one mark each and demand to-the point and precise answer.

• Attempting Numericals: Start the answer by writing the skeleton formula in standard notation followed by substitution of values with units. Numericals carry step-wise marking. At times it happens that due to lack of time these questions remain un-attempted. In that case, even if you write the general formula and substitute the values, you manage to score half of the total marks allotted to the question.

Ques: A solution prepared by dissolving 1.25 g of oil of winter green (methyl salicylate) in 99.0 g of benzene has a boiling point of 80.31 °C. Determine the molar mass of this compound. (B.P. of pure benzene = 80.10 °C and Kb for benzene = 2.53 °C kg mol−1) (CBSE 2010 Set 3, Q 21)

• Conversion of units should be taken care of. The final answer must be written with units.

• Always support your answers with structures, examples, equations and graphs even if the question does not ask for it.

• Memory-based questions are usually asked from the chapters like polymers, chemistry in everyday life, bio molecules and surface chemistry.

A little hard work with a little smartness will help you come out with flying colours in the upcoming chemistry examination. So focus on time management, topic-wise revision and self-assessment.

All the Best!

Team Meritnation