meritnation.com


Simple Ways for Scoring in Organic Chemistry

Meritnation|Mar 9th, 2012 02:35pm

With the exams approaching, your preparation must be at its peak. It is a general myth among the students that organic chemistry is the toughest topic to score marks in, however this is not the case. With only a few days left before the examination, the team of chemistry experts at Meritnation bring to you some really beneficial strategies to master this portion of the syllabus.

  • Focussing on NCERT questions: The NCERT Part – II comprises of organic chemistry and contributes to 28 marks in the examination.
  • An analysis of previous years’ question papers depicts that many questions are asked as it is from the NCERT textbooks.

The table given below shows the exact question numbers of the questions in the NCERT book which have been asked in the examination. Note that, many questions are being asked repeatedly.

Units Marks 2011 2010 2009 2008 2007 2006
Haloalkanes and Haloarenes 4 Table 10.1 Example 10.7 Example 10.6, 10.17 Ex 10.2 (i)10.9 (i), 10.14 (vii) - -
Alcohols, Phenols and Ethers 4 11.18 (ii), 11.31 (iv)
11.20 (ii, iv), 11.18 (i, iii) 11.3 (v) 11.3 (ii), 11.21 (ii, ii, vi) 11.22 -
Aldehydes, Ketones and Carboxylic Acids 6 12.13 (i, iv), 12.16 (ii, iv), 12.17 (i, ii)
Fig 12.2, 12.11, 12.13 (iii, vii), 12.12 (i, ii) 12.16 (ii), 12.19, 12.17 (iv) 12.12 (ii), 12.17 (i, x, xi), 12.16 (ii, iii) Table 12.1, 12.13 (i) 12.16 (ii), 12.13 (vii)
Amines 4 13.4 (ii)
Table 13.1, 13.4 (i,ii, iii-a, iv) Ex 13.4, 13.7 (iii, iv) 13.3 (I, iii, v) 13.12 13.2 (v)
Biomolecules 4 14.12, 14.13
14.17, 14.22 14.12 (i), table 14.3 14.12 (i, iii), 14.10 14.12 (ii) 14.15, table14.3
Polymers 3 15.2
15.11 15.12 15.17 15.12, 15.16 15.12, 15.15
Chemistry in Everyday Life 3 16.15
16.21 (i) 16.15, 16.17, 16.21 (i) 16.12, 16.22 16.15 -

So, mark these questions in the NCERT book and go through all the NCERT solutions thoroughly. For this you can also refer to the NCERT solutions section on meritnation.com

  • IUPAC Nomenclature questions: A conclusion from previous years’ papers is that, 90% of the questions related to nomenclature of organic compounds usually come from the tables of common and IUPAC names or in-text examples present in NCERT book. Below is a summarized chart of all the tables and in-text examples meant for nomenclature.
Haloalkanes and Haloarenes Table 10.1, example 10.1 and example 10.2
Alcohols, Phenols and Ethers Table 11.1, 11.2, example 11.1 and in-text question 11.3
Aldehydes, ketones and carboxylic acids Table 12.1 and intext questions 12.1, Table 12.3 and in-text question 12.6
Amines Table 13.1

Note: Do not leave even a single compound from the tables and in-text examples.

  • Name reactions: Important name reactions which have been asked previously are Sandmeyer reaction, Williamson synthesis, Riemer-Tiemann reaction, Kolbe’s reaction, Aldol Condensation, Cannizzaro Reaction, Clemmensen Reduction reaction, Hoffmann Bromamide reaction, Coupling reaction. So,we advise you to revise these reactions.
  • Distinction test: The distinction tests are usually asked between:
  • Aliphatic and aromatic compounds
  • Compounds having two different functional groups
  • Compounds having same functional group but different arrangement of atoms (e.g., 1°, 2°, 3°)

Steps for attempting these questions
Step – I: See how many marks are allotted to the question. Remember, 1 mark is for 1 test.
Step – II: Write the structural formulae of both the compounds.
Step – III: See where the two structures differ in.
Step – IV: Recall the reactions which you have studied.
Step – V: Apply those reactions in the compounds keeping in mind the skeletal structure they differ in.

  • Conversions: Conversion based questions are surely going to come in exams. Remember there can be multiple steps to reach the final product but the shortest and feasible steps have to be written in the answer-sheet.

Please note CBSE has yet not asked any conversion which consist of more than 3-steps.

Steps for attempting these questions
Step – I: Read the question very carefully.
Step – II: Write the starting compound on the left hand side and the final compound on the right hand side.
Step – III: See where do the two structure differ in.
(They mostly differ either in functional groups, number of carbon atoms or both)
Step – IV: Recall the reactions which you have studied.
Step – V: Apply those reactions in initial compound so as to reach to the final compound.

Expected areas from where questions can come in 2012

Unit Expected areas from where questions can be asked in 2012 examination
Haloalkanes and Haloarenes IUPAC Nomenclature, SN1 and SN2 reaction (Question: Which compound undergoes faster reaction?), DDT, Iodoform
Alcohols, Phenols and Ethers IUPAC Nomenclature, Conversions, Alcohols – Boiling points and solubilities, Phenols-Acidic properties, Difference in the boiling points of ethers and alcohols, Williamson reaction, Reimer-Tiemann reaction
Aldehydes, Ketones and Carboxylic Acids IUPAC Nomenclature, Nucleophilic addition on carbonyl carbon, Aldol Condensation, Cannizzaro reaction, Clemmensen reduction reaction, Acidity of carboxylic acids (Question: Arrange the following compounds in increasing/ decreasing order of their acidic trends.), Distinction tests, Conversions
Amines IUPAC Nomenclature, Basicities of amines (Question: Arrange the following amines in increasing/ decreasing order of their basic strengths.), Hoffmann Bromamide reaction, Coupling reaction, Aniline -Insoluble in water and does not undergo Friedel Crafts reaction
Biomolecules Glucose open chain and cyclic structure (Question: Why was the open chain structure of glucose unable to explain its properties?), Proteins-Primary, secondary, tertiary and quarternery structures, Vitamins – Sources and deficiency disease – table 4.3, nucleosides and nucleotides
Polymers Elastomer, thermoplastic and thermosetting polymer, Rubber, Nylon 6, nylon 6,6, teflon, bakelite, Buna-N
Chemistry in Everyday Life Detergents, Food preservatives, Enzymes, Antifertility drugs, Analgesics, Artificial sweetening agents, biodegradable and non-biodegradable detergents

To help all you students in these last stage of preparation, we are providing Conversion Schemes and Distinction Tests

Follow these simple but smart ways and give your 100 % in the examination.

Best of Luck!
Team Meritnation

Add Comment Total Comments (35)

  • 1. Anushka Das  |  November 16th, 2013 at 7:46 pm

    thank you very much meritnation it will be a great help if you provide me physics too…thank you

  • 2. N.SAI TEJA  |  August 19th, 2013 at 7:34 am

    it helps me a million bucks :-) and please i want physics analysis too please

  • 3. rishabh sengar  |  June 27th, 2013 at 8:59 pm

    plz send me this conclusion in physics for 2014.i hope u will concider my case.

  • 4. fajra  |  June 15th, 2013 at 12:18 pm

    TnkZ aloT………….

  • 5. Anjali Panicker  |  June 9th, 2013 at 1:31 pm

    need some better shortcuts to remember organic rex’n mechanisms especialy while refering mukul ray organic rexn mechanisms

  • 6. BABLOO  |  May 30th, 2013 at 6:06 am

    thank you meritnation i hope to this site batter for me

  • 7. mini  |  April 28th, 2013 at 7:45 pm

    fingers crossed.. hope this is helpful!!!

  • 8. AMARSINH GHATAGE  |  April 19th, 2013 at 9:09 pm

    thanks to save my time and life

  • 9. mufaddal tel wala  |  March 10th, 2013 at 8:31 am

    but i want conversion shortcut i.e, given in ncert book exercise…….

  • 10. rohit  |  March 7th, 2013 at 9:37 pm

    best site i’ve ever seen in my life its helps me a lot

  • 11. Ashhar  |  March 7th, 2013 at 12:07 pm

    Thanks for the much needed help..i can cope up all of my syllabus..B-)

  • 12. brave guru9781505093  |  February 22nd, 2013 at 10:45 am

    it is fntbls slotion n thnks a lot

  • 13. PRADEEP  |  February 16th, 2013 at 5:35 pm

    plz gime me tips to get good score in organic chem. in cbse 2012-13

  • 14. PRADEEP  |  February 16th, 2013 at 5:30 pm

    FOR CBSE2012-13 ORGANIC CHEM. HOW STUDY ONLY ONE WEEK LEFT

  • 15. Shambhavi  |  January 2nd, 2013 at 11:57 am

    Very very helpful . Thnx alot!!!!

  • 16. Sachin kumawat  |  January 1st, 2013 at 7:59 pm

    Thank you very much team meritnation for your advice ,
    now i feel i could do much better in exams than what i could have done without your advice

  • 17. Biltu Das  |  December 3rd, 2012 at 8:26 am

    all hail merination

  • 18. Srikanth  |  November 15th, 2012 at 5:45 pm

    i even need it for part-1 chemistry&physics both the parts

  • 19. Srikanth  |  November 15th, 2012 at 5:22 pm

    thank u very much fr giving this i think that it is true

  • 20. Shivani yadav  |  October 29th, 2012 at 7:26 am

    plz….give the same for 2013 too…
    i need it..!!

  • 21. PUSHPRAJ  |  October 4th, 2012 at 1:41 pm

    but i want conversion shortcut i.e, given in ncert book exercise…….

  • 22. kiran  |  August 28th, 2012 at 9:41 pm

    thank you very much…..now i wud be able to cope up my syllabus quickly

  • 23. raksh  |  May 28th, 2012 at 10:22 pm

    three cheers for meritnation:)

  • 24. prachi  |  May 12th, 2012 at 1:38 pm

    i am a student of class 12. these are very helpful. plz guide me in electrochemistry and kinetics also

  • 25. zubina  |  March 26th, 2012 at 10:38 pm

    chemistry exam was the best
    All possible because of you…thanks a tonn

  • 26. palak  |  March 21st, 2012 at 10:07 pm

    Awesome Thank you so very much You told more than 70% of the paper which came in 2012

  • 27. juhi  |  March 15th, 2012 at 12:39 am

    thanks a lot these tips are helping me to prepare for my exams!thanks a lot!

  • 28. mithlesh kumar  |  March 13th, 2012 at 9:55 am

    Really it’s a best way to score good marks……!thnks very much to hole meritnation team….!!??@?¿¿¡

  • 29. Pratibha  |  March 12th, 2012 at 9:26 pm

    Thanks a Bunch!!!

  • 30. Praveen sharma  |  March 12th, 2012 at 1:41 pm

    Thanks a lot… Its very useful…. Thanks to meritnation…:)

  • 31. Nishant Horo  |  March 12th, 2012 at 1:16 am

    thnx dude, i jus wish dis helps me 2 score gud; n if i, i’l publish dis evrywer… ;>

  • 32. ankit  |  March 11th, 2012 at 7:22 am

    above table is for delhi board only

  • 33. shehnaaz shareen  |  March 10th, 2012 at 4:20 pm

    thanks alot….

  • 34. gowri nair  |  March 9th, 2012 at 8:42 pm

    organic chemistry tips

  • 35. Susmeet Jain  |  March 9th, 2012 at 4:55 pm

    Thank you so much ,sooo much
    I think this will save my life
    I was too woried about organic chemistry!!

Comment

*
*
*
Some HTML allowed:
<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>