Essential Tips for CBSE Class 12 Chemistry Exam Preparation
Key Strategies for Success in Chemistry Board Exam
New Delhi: On February 28, millions of students will take the CBSE Class 12 Chemistry board exam. In the rush of last-minute revisions, many students often lose marks due to anxiety and minor mistakes. Experienced teachers and examiners suggest that by keeping a few basic yet crucial points in mind during the final hours, students can easily save 5 to 10 marks. It is essential to adopt the correct approach in sections like numericals, organic conversions, nomenclature, and case studies. Additionally, maintaining calm and composure in the examination hall is equally important. Let’s explore some final tips that could enhance your score.
Smart Approach for Numerical and Calculations
In numerical questions, always maintain a clear order: start by writing the given data, followed by the formula, then the substitutions, and finally the answer with units. Clearly showing each step is crucial as marks are awarded for the process. Often, failing to write the unit can lead to a loss of 1-2 marks. Even if there’s a mistake in calculations, partial marks can be obtained from correctly written steps.
Avoid Mistakes in Organic Conversions
In organic conversion questions, ensure to display all intermediate products. Clearly write the reagents and conditions above the arrows. Omitting intermediates can result in losing all marks. Use the correct names for reactions (like nitration, halogenation) and, where necessary, illustrate electron movement with curved arrows. Mentioning the stability of carbocations can earn you extra points.
Attention to Nomenclature and Coordination Compounds
For naming coordination compounds, list the ligands in alphabetical order, followed by the metal name and its oxidation state in Roman numerals within brackets. Incorrect IUPAC order or wrong geometry (like writing tetrahedral instead of square planar) can lead to mark deductions. Pay attention to the correct signs (+ or -) when writing oxidation numbers.
Case Studies and Conceptual Questions
Read the provided passage in case studies carefully two to three times. Most answers are hidden within the passage. Focus on the effects of lanthanide contraction and conceptual questions related to d/f blocks, as these often come from textbooks. Avoid writing unnecessarily long paragraphs; instead, provide concise and clear answers in bullet points.
Psychological Preparation in the Exam Hall
If a question seems difficult, don’t panic. First, read through the entire paper and tackle the easier questions first. Make effective use of internal options. Keep your answers organized—good handwriting and spacing positively impact the examiner. Write only what is asked; avoid cramming in extra information. Solving the paper with a calm mind leads to better results.