Around 10 lakh students appear for the CBSE class 12 board examinations every year and one third of the total students appear for Chemistry. From tricky formulas to complicated chemical names, this subject does scare a lot of students. However, if the preparation is with proper planning and strategy, the subject could be scoring as well.
The Chemistry examination is conducted for 70 marks and the duration of examination is 3 hours.
Here are the important topics that need to be emphasised, in Chemistry to score maximum marks in the examination.
The subject has two parts: Organic Chemistry and Physics Chemistry.
- It covers more than 25 marks out of total 70 marks in the exam
- Out of three 5 marks question, one is always from organic chemistry
Rest 20 marks questions are likely to be from these sub topics:
- Nomenclature – 2 marks
- Distinguishing test – 2 marks
- Mechanism – 3 marks
- Naming reaction – 3 marks
- The students should focus on specific parts of the topic to write a clean copy in the examination.
It contains numericals of 3 marks each from Solid States, Solutions, Electrochemistry, Chemical Kinetics
There will be questions on:
- Distinction between two things (questions always asked from surface chemistry)
- Difference between lyophillic and lyophobic
- Difference between physical absorption and chemical absorption
- Enzymes and catalyst
There will be few definitions which are commonly asked:
- Tyndal effect
- Brownian movement
- Metallurgy – chemical processes, Zone refining, Van Arkel Method, Mond’s process are commonly asked questions
- P Block, D Block and F block elements – only from NCERT are important
- Co-ordination compounds – Questions might be asked on Nomenclature, Isomerism and Valence Bond Theory
For more details on question paper, the students can also get help from CBSE’s design of question paper for chemistry, the link of the same is: www.cbse.nic.in/curric~1/chem-xii-1.pdf.
India Today wishes all the students good luck for the examination!
With inputs from Spanedea