IIT JEE 2012 Paper

Exam Conducting Body IIT Delhi

Exam Date 8th March, 2012

Exam Mode Computer-Based Online Test

Exam Paper and Duration 2 papers (Paper 1 and Paper 2) of 3 hours each

Subjects or Sections Physics, Chemistry, Maths

Total Questions 120 (20 Qs per Subject per Paper)

Total Marks 408 Marks (Paper-1: 210 and Paper-2: 198)

Question Types

MCQs, Numerical Problems, Comprehension, Match the

Column

IIT JEE 2012 Paper Marking SchemeThe marking scheme that was followed in Paper I was in the following manner for each Subject:

Paper I

Sections Question Pattern Marking Scheme No. of Q. Total Marks

1 Single Answer Type

+3 for correct, -1

Negative Marking

10 30

2

Multiple Answer

Type

+4 for Correct, No

Negative Marking

5 20

3 Single Integer Type

+4 for Correct, No

Negative Marking

5 20

IIT JEE 2012 Paper Marking SchemePaper II marking scheme was as follows for each Subject:

Paper II

Sections Question Pattern Marking Scheme No. of Q. Total Marks

1

Single Correct

Answer Type MCQ

+3 for correct, -1 for

wrong answer

8 24

2 Paragraph Type MCQ

+3 for correct, -1 for

wrong answer

6 18

3

Multiple Answer

Type MCQ

+4 for Correct, No

Negative Marking

6 24

IIT JEE 2012: Expert’s Viewpoint

The two papers were set in the following manner in terms of difficulty level:

Subjects Difficulty Level

Physics Physics was moderately difficult with few calculation based questions.

Chemistry This section was from easy to moderate level.

Maths The Mathematics section was tricky and lengthy.

Overall No major errors, irregularities or confusions were seen in the question paper.

IIT JEE 2012 Paper: Distribution of Questions

Subject Class 11 Class 12 Total

No of

Questions

Total Marks No of Questions Total Marks

No of

Questions

Total Marks

Chemistry13 44 27 92 40 136

Mathematics14 46 26 90 40 136

Physics16 52 24 84 40 136

Grand Total43 142 77 266 120 408

The questions in both Paper I and Paper II were distributed in the following manner:

IIT JEE 2012 Overall Difficulty Analysis

Subject

Easy Moderate Tough

No. of

Questions

Total Marks

No. of

Questions

Total

Marks

No. of

Questions

Total

Marks

Physics 15 47 16 58 9 31

Chemistry 8 24 20 70 12 42

Maths 9 28 18 63 13 45

Grand Total 32 99 54 191 34 118

IIT JEE 2012 Question-wise Difficulty Level

IIT JEE 2012 Marks-wise Difficulty Level

IIT JEE 2012 Paper Analysis: Physics

● Physics section was on a moderate level even though a few questions involved tedious calculations.

● Majority of the questions involved integration of concepts across the topics.

● Physics section in paper 2 was more difficult than paper 1. There was some ambiguity in the questions asked.

● In general, comprehension based questions were on the difficult side.

Subject

Class 11 Class 12 Total

No. of

Questions

Total

Marks

No. of

Questions

Total

Marks

Total

Questions

Total

Marks

Physics16 52 24 84 40 136

Topic wise Question Breakup in Physics

Topics No of Questions Weightage of Marks

Rotation (Rigid Body Dynamics)7 17.6%

Electromagnetic Field5 13.2%

Electrostatics4 11.0%

Geometrical Optics3 6.6 %

Modern Physics2 5.1%

Sound Waves2 5.1%

Modern Physics2 4.4%

Kinetic Theory of Gases2 4.4%

Circular Motion2 4.4%

Current Electricity1 2.9%

Topic wise Question Breakup in Physics

Topics No of Questions Weightage of Marks

Gravitation 12.9%

Electromagnetic Induction 12.9%

Alternating Current 12.9%

Friction 12.9%

Simple Harmonic Motion 1 2.2%

Wave Optics 1 2.2%

Capacitance 1 2.2%

Fluids 1 2.2%

Experiments & Error Analysis 1 2.2%

Heat Transfer 1 2.2%

IIT JEE 2012 Paper Analysis: Physics Section

IIT JEE 2012 Paper Analysis: Chemistry

● Chemistry section contained questions that were of moderate difficulty level.

● Greater emphasis was given to Physical and Organic Chemistry portions.

● Very fewer questions were asked from Inorganic Chemistry.

● One question (Qn.22 in version 0) in paper II seemed to have an improbable answer.

Subject

Class 11 Class 12 Total

No. of

Questions

Total Marks

No. of

Questions

Total Marks

Total

Questions

Total Marks

Chemistry13 44 27 92 40 136

Topic wise Question Breakup in Chemistry

Topics No of Questions Weightage of Marks

Carbonyl Compound4 8.8%

P-Block Elements3 7.4%

Biomolecules2 5.9%

Thermodynamics2 5.9%

Surface Chemistry2 5.9%

Qualitative Analysis2 5.9%

POC -1 & Structural Identification2 5.1%

Atomic Structure & Nuclear Chemistry2 5.1%

Mole Concepts 12 5.1%

Chemical Bonding2 4.4%

Coordination Compound2 4.4%

Electrochemistry2 4.4%

Topic wise Question Breakup in Chemistry

Topics No of Questions Weightage of Marks

Chemical Kinetics 1 2.9%

Aromatic Compounds 1 2.9%

Oxidation Reduction 1 2.9%

Isomerism 1 2.9%

Thermochemistry 1 2.2%

Solid State 1 2.2%

Mole Concepts 2 1 2.2%

Colligative Properties 1 2.2%

Metallurgy 1 2.2%

Gaseous State 1 2.2%

D-Block Elements 1 2.2%

Carboxylic Acid & Derivatives 1 2.2%

IIT JEE 2012 Paper Analysis: Chemistry Section

IIT JEE 2012 Paper Analysis: Maths Section

● Mathematics was a moderately difficult section.

● There were direct questions that required both algebraic manipulations and in-depth subject knowledge.

● Some tricky questions were also present. They were also time consuming.

● Important topics included Calculus, Algebra and Coordinate Geometry.

Subject

Class 11 Class 12 Total

No. of

Questions

Total Marks

No. of

Questions

Total Marks

Total

Questions

Total Marks

Maths14 46 26 90 40 136

Topic wise Question Breakup in Maths

Topics No of Questions Weightage of Marks

Definite Integration 4 9.6%

Application of Derivatives 3 8.8%

Probability 3 8.1%

3D Geometry 3 7.4%

Matrices & Determinant 3 7.4%

Permutation & Combination 3 6.6%

Circle 3 6.6%

Continuity & Derivability 2 5.1%

Vector 2 5.1%

Functions 2 5.1%

Topic wise Question Breakup in Maths

Topics No of Questions Weightage of Marks

Limits 2 4.4%

Trigonometric Equations1 2.9%

Differential Equations1 2.9%

Parabola1 2.9%

Fundamentals of Mathematics1 2.9%

Hyperbola1 2.9%

Indefinite Integration1 2.2%

Complex Number1 2.2%

Ellipse1 2.2%

Properties of Triangle1 2.2%

Sequence and Progression1 2.2%

IIT JEE 2012 Paper Analysis: Maths Section

Important Topics Asked in IIT JEE 2012 Paper: Physics

❏ Kinetic Theory of Gases

❏ Circular Motion

❏ Gravitation

❏ Alternating Current

❏ Simple Harmonic Motion

❏ Wave Optics

❏ Capacitance

❏ Rotation (Rigid Body Dynamics)

❏ Electromagnetic Field

❏ Electrostatics

❏ Geometrical Optics

❏ Modern Physics

❏ Sound Waves

❏ Modern Physics

Chemistry

❏ Atomic Structure & Nuclear Chemistry

❏ Mole Concepts 1

❏ Chemical Bonding

❏ Coordination Compound

❏ Electrochemistry

❏ Isomerism

❏ Metallurgy

❏ Carbonyl Compound

❏ P-Block Elements

❏ Biomolecules

❏ Thermodynamics

❏ Surface Chemistry

❏ Qualitative Analysis

❏ POC -1 & Structural Identification

Maths

❏ Continuity & Derivability

❏ Vector

❏ Functions

❏ Hyperbola

❏ Indefinite Integration

❏ Complex Number

❏ Ellipse

❏ Definite Integration

❏ Application of Derivatives

❏ Probability

❏ 3D Geometry

❏ Matrices & Determinant

❏ Permutation & Combination

❏ Circle

IIT JEE 2012 CutoffCategory

MQMRAggregate

cut-offChemistry Physics Mathematics

GE 20 20 34 229

OBC 18 18 31 207

SC 10 10 17 119

ST 10 10 17 115

PD 10 10 17 11

IIT JEE 2012 board also officially announced that the IIT JEE 2012 cutoff will be as per given below:

● IIT JEE 2012 overall cutoff for General Category of Students will be 35 % and Subject-wise IIT JEE 2012 cut off

will be 10%.

● IIT JEE 2012 overall cutoff for OBC category of students will be 31.5% and subject-wise Cutoff will be 9%.

● IIT JEE 2012 overall cutoff for SC and ST students will be 17.5% and subjective Cut off 5%.

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