IIT JEE 2007 Analysis


Dear Students,

Hope you have done well in IIT-JEE 2007. Here, we present the detailed analysis of the paper by the Subject Experts and Professors at T.I.M.E.

Structure of the Paper
Key for Paper-I
Key for Paper-II
Detailed Solution for Paper-I
Detailed Solution for Paper-II
Categorization of Questions(Easy, Medium, Difficult) for Paper-I
Categorization of Questions(Easy, Medium, Difficult) for Paper-II
Distribution of marks across various areas - Paper-I
Distribution of marks across various areas - Paper-II

Structure of the Paper

IIT-JEE 2007 had 2 papers - Paper I and Paper II. The duration of each paper was 3 hours. Each paper consisted of 66 Questions. Both the papers had 3 parts each – Physics, Chemistry and Mathematics. Each part had 22 Questions.

Each of the three parts - Physics, Chemistry and Mathematics - was divided into four sections. The format of the questions in any given section is the same across the three parts (Physics, Chemistry and Mathematics) and across the 2 papers (Paper I and Paper II).

The details of the sections are given below.

  No. of Qns Title of the Section Marks per Correct Answer Number of Choices Penalty for Wrong Answer Maximum Marks for the Section
Section 1 9 Straight Objective Type 3 4 -1 27
Section 2 4 Assertion-Reason Type 3 4 -1 12
Section 3 6 Linked Comprehension Type 4 4 -1 24
Section 4 3 Matrix-Match Type 6 0 0 18
Total 22         81

Total Marks in each part(subject) = 81
Total Marks in each part(subject) = 81 X 3 = 243
Total Marks in IIT-JEE 2007 = 2 X 243 = 486

Top

Categorization of Questions (Easy, Medium, Difficult) for Paper-I

EASY:- Easy Questions are defined as those questions that can be answered by a student who knows the concept under question. It is a direct application of the concept. A student is expected to have attempted all the EASY Category Questions.

MEDIUM:- Medium Difficulty Questions are those questions that may involve more than one concept. A well-prepared student should be able to identify at least 75% of these and solve them correctly

DIFFICULT:- Difficult Questions are those Questions are those will definitely involve multiple concepts and are tricky. The students may be led to think away from the ideal method of problem solving. It will require good effort even from the well-prepared student to identify the Difficult ones and categorize them accordingly.

Physics

Summary
Easy 12 Questions 42 Marks
Medium Difficulty 7 Questions 26 Marks
Difficult 3 Questions 13 Marks





To see Questionwise difficulty level in Physics select your paper code

Chemistry:-
Summary
Easy 12 Questions 43 Marks
Medium Difficulty 9 Questions 32 Marks
Difficult 1 Questions 6 Marks





To see Questionwise difficulty level in Chemistry select your paper code

Mathematics:-
Summary
Easy 8 Questions 29 Marks
Medium Difficulty 11 Questions 40 Marks
Difficult 3 Questions 12 Marks





To see Questionwise difficulty level Maths select your paper code


Top

Categorization of Questions (Easy, Medium, Difficult) for Paper-II

Physics
Summary
  No. of Questions Marks
Easy 11(50%) 39(48.1%)
Medium Difficulty 7(31.8%) 26(32.0%)
Difficult 4(18.2%) 16(19.8%)






To see Questionwise difficulty level in Physics select your paper code

Chemistry:-
Summary
Easy 6 Questions 22 Marks
Medium Difficulty 12 Questions 44 Marks
Difficult 4 Questions 15 Marks





To see Questionwise difficulty level in Chemistry select your paper code

Mathematics:-
Summary
  No. of Questions Marks
Easy 6(28%) 18(22%)
Medium Difficulty 8(36%) 33(40%)
Difficult 8(36%) 30(38%)






To see Questionwise difficulty level in Maths select your paper code

Top

Distribution of marks across various areas - Paper-I

Physics:-

Subject Area No. of Questions Marks Total Marks %Distribution
Mechanics Section I 1.00 3.00 3.00    
Section II 2.00 3.00 6.00    
Section III 3.00 4.00 12.00    
Section IV 1.00 6.00 6.00 27.00 33.33
Electrostatics and
Current Electricity
Section I 4.00 3.00 12.00    
Section II 0.00 3.00 0.00    
Section III 0.00 4.00 0.00    
Section IV 0.00 6.00 0.00 12.00 14.81
Electromagnetism Section I 0.00 3.00 0.00    
Section II 0.00 3.00 0.00    
Section III 0.00 4.00 0.00    
Section IV 1.00 6.00 6.00 6.00 7.41
Optics Section I 2.00 3.00 6.00    
Section II 1.00 3.00 3.00    
Section III 0.00 4.00 0.00    
Section IV 0.00 6.00 0.00 9.00 11.11
Modern Physics Section I 2.00 3.00 6.00    
Section II 1.00 3.00 3.00    
Section III 0.00 4.00 0.00    
Section IV 1.00 6.00 6.00 15.00 18.52
Thermodynamics Section I 0.00 3.00 0.00    
Section II 0.00 3.00 0.00    
Section III 3.00 4.00 12.00    
Section IV 0.00 6.00 0.00 12.00 14.81
          81.00 100.00



Chemistry:-

Subject Area No. of Questions Marks Total Marks %Distribution
Atomic Structure &
Chemical Bonding
Section I 3 3 9    
Section II 2 3 6    
Section III 0   0    
Section IV 0   0 15 19
Metallurgy Section I 1 3 3    
Section II 0   0    
Section III 0   0    
Section IV 0   0 3 4
Hydrocarbons Section I 2 3 6    
Section II 0   0    
Section III 0   0    
Section IV 0   0 6 7
Basic Principles in
Organic Chemistry
Section I 1 3 3    
Section II 0   0    
Section III 0   0    
Section IV 0   0 3 4
Dilute Solutions Section I 1 3 3    
Section II 0   0    
Section III 0   0    
Section IV 0   0 3 4
Thermodynamics Section I 1 3 3    
Section II 0   0    
Section III 0   0    
Section IV 0   0 3 4
P Block Elements Section I 1 3 3    
Section II 0   0    
Section III 0   0    
Section IV 3 4 12 15 19
Surface Chemistry Section I 0   0    
Section II 1 3 3    
Section III 0   0    
Section IV 0   0 3 4
Electrochemistry Section I 0   0    
Section II 0   0    
Section III 3 4 12    
Section IV 0   0 12 15
Coordination Compounds Section I 0   0    
Section II 0   0    
Section III 0   0    
Section IV 1 6 6 6 7
Biomolecules / Polymers Section I 0   0    
Section II 0   0    
Section III 0   0    
Section IV 1 6 6 6 7
States of Matter Section I 0   0    
Section II 0   0    
Section III 0   0    
Section IV 1 6 6 6 7
        81 81 100



Subject Area Marks
Physical Chemistry 42
Organic Chemistry 15
Inorganic Chemistry 24
  81









Mathematics:-

Subject Area No. of Questions Marks Total Marks %Distribution
Algebra Section I 3 3 9    
Section II 1 3 3    
Section III 3 4 12    
Section IV 0 0 0 24 30
Trigonometry Section I 1 3 3    
Section II 0 0 0    
Section III 0 0 0    
Section IV 0 0 0 3 4
Coordinate Geometry Section I 1 3 3    
Section II 1 3 3    
Section III 3 4 12    
Section IV 0 0 0 18 22
Vectors, 3D, Matrices Section I 1 3 3    
Section II 1 3 3    
Section III 0   0    
Section IV 1 6 6 12 15
Differential Calculus Section I 3 3 9    
Section II 0   0    
Section III 0 0 0    
Section IV 1 6 6 15 19
Integral Calculus Section I 0   0    
Section II 1 3 3    
Section III 0 0 0    
Section IV 1 6 6 9 11
          81 100



Top

Distribution of marks across various areas - Paper-II

Physics:-

Subject Area No. of Questions Marks Total Marks %Distribution
Mechanics Section I 5 3 15    
Section II 2 3 6    
Section III 3 4 12    
Section IV 1 6 6 39 48.1
Electrostatics and
Current Electricity
Section I 2 3 6    
Section II          
Section III          
Section IV       6 7.4
Electromagnetism Section I 1 3 3    
Section II 1 3 3    
Section III          
Section IV 1 6 6 12 14.8
Optics Section I 3 4 12    
Section II          
Section III          
Section IV       12 14.8
Modern Physics Section I 1 3 3    
Section II          
Section III          
Section IV       3 3.7
Thermodynamics Section I 1 3 3    
Section II          
Section III          
Section IV 1 6 6 9 7.4
          81.00 100.00


Chemistry:-

Subject Area No. of Questions Marks Total Marks %Distribution
Atomic Structure &
Chemical Bonding
Section I 0 3 0    
Section II 1 3 3    
Section III 0 0 0    
Section IV 0 0 0 3 3.7%
Metallurgy Section I 0 3 0    
Section II 0 3 0    
Section III 0 4 0    
Section IV 0 6 0 0 0
Hydrocarbons Section I 0 3 0    
Section II 0 3 0    
Section III 0 4 0    
Section IV 0 6 0 0 0
Basic Principles in
Organic Chemistry
Section I 1 3 3    
Section II 0 3 0    
Section III 0 4 0    
Section IV 0 6 0 3 3.7%
Dilute Solutions Section I 0 3 0    
Section II 0 3 0    
Section III 0 4 0    
Section IV 0 6 0 0 0
Thermodynamics Section I 1 3 3    
Section II 0 3 0    
Section III 0 4 0    
Section IV 0 6 0 3 3.7%
P Block Elements Section I 0 3 0    
Section II 0 3 0    
Section III 0 4 0    
Section IV 0 6 0 0 0
Surface Chemistry Section I 0 3 0    
Section II 0 3 0    
Section III 0 4 0    
Section IV 0 6 0 0 0
Electrochemistry Section I 0 3 0    
Section II 0 3 0    
Section III 2 4 8    
Section IV 0 6 0 8 9.9%
Coordination Compounds Section I 1 3 3    
Section II 0 3 0    
Section III 0 4 0    
Section IV 0 6 0 3 3.7%
Biomolecules / Polymers Section I 0 3 0    
Section II 1 3 3    
Section III 0 4 0    
Section IV 0 6 0 3 3.7%
States of Matter Section I 0 3 0    
Section II 0 3 0    
Section III 0 4 0    
Section IV 0 6 0 0 0

Qualitative analysis Section I 1 3 3    
Section II 0 3 0    
Section III 0 4 0    
Section IV 0 6 0 3 3.7%
Aldehyde and ketone Section I 1 3 3    
Section II 0 3 0    
Section III 0 4 0    
Section IV 0 6 0 3 3.7%
Stereo chemistry Section I 1 3 3    
Section II 1 3 3    
Section III 0 4 0    
Section IV 0 6 0 6 7.4%
Nuclear chemistry Section I 1 3 3    
Section II 0 3 0    
Section III 0 4 0    
Section IV 0 6 0 3 3.7%
S block elements Section I 0 3 0    
Section II 1 3 3    
Section III 0 4 0    
Section IV 0 6 0 3