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Crack IIT JEE 2009!

The format of JEE papers keeps changing. However, for the last three years,

the format has included two separate papers of three hours each. Both thesepapers include three sections on physics, chemistry and mathematics. The

questions in these papers are of the senior-secondary academic levelexpected at the stage. Each section includes questions under different

headings.

MASTER MATHEMATICS

To score in mathematics, you need to have the ability to solve simple,stereotypical questions, as well as challenging and complex problems that

you might have to face unexpectedly.

Before you solve a problem, you must:

(a) Identify exactly what needs to be answered

(b) Identify the data and conditions that will guide you to the answer.(c) Visualise the problem mentally and, if needed draw a sketch or diagram

from the given data and write the appropriate symbols and equations.

1. While attempting questions, try not to make any particular problems a prestigeissue. Hence, if you are unable to solve the problem within a reasonable amount of

time, you should skip the question and move on. Always remember that there maybe simpler problems awaiting you

2. Dont be tempted to guess the answer to a question. It may prove costly if there isnegative marking.

3. Also, always try and attempt some mock question papers in a simulated environment

before the D-day. In fact, there are many online test that provide useful mock

practice test for students. One such website is www.testmate.in

Step-wise problem solving skills

1. Read and understand the problem clearly (a) What am I supposed to find? (b)

What am I solving for? (c) What data and conditions have been provided?

2. Develop and carry out a plan of action (a) Have I ever solved a similar problem?(b) What strategy should be followed? (c) How do I apply the skills needed to

implement a strategy?

3. Find the answer and check it (a) Does the proposed solution seem to bereasonable? (b) Does the proposed solution need to be checked? In multiple choice

questions or multiple-answer questions, try to identify the choices that cannot becorrect or choices that immediately follow from the other choices.

PREPERATION FOR PHYSICS

The format of the physics section in the JEE question paper changes

every year. Subject problems, which involve details solutions, have been

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dispensed with. For the first time, in JEE-2007, questions based onparagraph, assertion-reason type questions and questions on matrix

matching were included. IN JEE-2008; MCQs with more than one correctchoice were included in the paper.

Studying tips1. Learn the definitions and formulae in each chapter first. It is essential

to understand the assumptions involved in deriving a formula. The

technique and mathematical tools and logic used must be clearly

recognized and understood.

2. Write down important formulae in a separate notebook. Also, make a

note of special techniques used in solving some problems in thechapter. These notes should be made for all the chapters. They will be

useful before the exam, when you have limited time

3. Carefully review chapters and recall the formulae, laws and techniques

in the chapters. If you are unable to recalls them, refer to your notes

Identification of problem areas

In each chapter, identify the problem areas, which need closer study.

Prepare a note of the questions you failed to solve in the first attempt. Writedown the correct solutions in a separate notebook. If you are unable to solve

a problem, consult your teacher. In physics, checking the given choice fordimensional consistency is often very helpful.

Questions based on experimentsIn the physics paper, there is at least one question based on an

experiment. You must learn how to determine the least count of measuringinstrument such as vernier calipers, micrometer screw and spherometer, and

to use them in making measurement. The rules of determining thesignificant figures in the result of a calculation must be clearly understood.

Books recommended for physics

1. Fundamentals of Physics by Halliday, Resnick and Walker

2. Advanced Level Physics by Nelkon and Parker

3. Physics of class Xi and XII by NCERT

CRACK CHEMISTRY

The three branches of chemistry are evenly represented in both the papers in theJEE. The chemistry paper in the year 2008 was in the following format in both Paper I and

Paper II:

Straight-objective type: This involves questions with four alternative answers, of whichonly one is correct.

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Multiple-correct answer type: This involves questions with four alternative answers,of which more than one is correct.

Reasoning type: Here, each question involves two statements, which have to correlatedwith each other. Only one answer is correct.

Linked-comprehension type: This is a paragraph stating certain facts, from which aset of three questions is framed with four alternative answers, of which only one is correct.

Physical ChemistryThe subject matter in physical chemistry involves topics with well-focused principles.

Their application to different problems is straightforward. You should pay more attention to

this branch of chemistry so that you can solve problems related to it more comfortably. Bethoroughly prepared with:

Bohrs theory of atomic structure, quantum numbers and orbitals.

MO approach to diatomic molecules, hybridization/VSEPR theory

Vander Waals equation of state and application to behaviour of real gases

Crystal systems, packing of atoms, ionic solids and density of crystals

Collegative properties of non-electrolytic and electrolytic solutions

Electrolysis, conductance and galvanic cells

Differential and integrated rate laws, effect of catalyst and temperature on the rate

of reaction

Determination of PH of acids, bases and salt solutions (including hydrolysis) and

solubility product

Le-Chatelier Principle, relation between Kp and Kc

Stability of nuclei

Thermo-chemical calculations and criterion of spontaneityAs for inorganic and organic chemistry, be prepared with:

Inorganic Chemistry

Boron and its compounds

Silicates and silicones

Oxoacids of phosphorus, sulphur and halogens

Inter halogens and compounds of noble gases

Important compounds such as H2O2, NAHCO3, NA2CO3, KMnO4, K2Cr2O7

Transition elements, lanthanides and coordination compounds

Quantitative analysis of salts

Organic Chemistry

Isomerism with optical isomerism

Inductive and resonance effects on acidity and basicity of acids and bases

Factors affecting SN1/SN2 reactions

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Reaction involving rearrangement

Bromination and hydrogenerations of cis-and-trans-alkenes; debromination of

different isomers of 2, 3-dibromobutane

Reimer-Tiemann reaction

Characteristic reactions of ketorres, aldehydes and carboxylic-acid derivatives

Reactions with Grignar reagent and those of diazonium salt

Carbohydrates and polymers

Qualitative analysis of organic compounds