### IIT JEE 2011 Analysis

**Paper 1**

Paper1 had 69 questions in total for 240 marks – in the order of Chemistry, Physics and Mathematics. Each subject had 23 questions and the pattern was exactly the same for all the subjects.

Type of question | Number of questions | Marks for a correct answer | Negative marking | Total Marks for the Section |
---|---|---|---|---|

Section I – Single Correct Answer Type | 7 | 3 | – 1 | 21 |

Section II – Multiple Correct Answers Type | 4 | 4 | NIL | 16 |

Section III – Paragraph Type | 5 | 3 | – 1 | 15 |

Section IV – Integer Answer Type | 7 | 4 | NIL | 28 |

**What was new in IIT-JEE 2010 in comparison with earlier years – Paper 1:**

NO partial marks are awarded for correct answers in Multiple Correct Type questions. Last year there were partial marks

**Part 1 – Chemistry**

This is a moderate level paper leaning more towards easy level of difficulty. The usual weightage of Physical > Organic > Inorganic Chemistry is maintained. Most of the questions in this paper evaluate the conceptual clarity of the student

**Part 2 – Physics**

Overall the difficulty level of the paper was moderate. Still there were a few numerical questions involving elaborate mathematical calculations making them time consuming and hence difficult. No representation of Optics in this paper. Major focus in this paper was on Mechanics (for a total marks of 31)

**Part 3 – Mathematics**

Mathematics part of the 2011 JEE paper 1 was considered easier than the paper 1 of 2010. Few questions in Integer answer type require in-depth understanding of the concepts with perseverance in solving problems. Trigonometry had a good representation in the paper; the passage on matrices required quick thinking to interpret and solve the questions. One question about ‘3 3 non-singular skew symmetric matrices’ has a basic flaw since odd ordered skew symmetric matrices are always singular. As shown below paper 1 was a moderately difficult paper.

Paper 2

Paper 2 had 60 questions in total – in the order of Chemistry, Physics and Mathematics. Each subject had 20 questions and as in paper 1 the pattern was exactly the same across the subjects. Questions had differential markings, each subject had 80 marks and the maximum mark for the paper was 240.

Type of question | Number of questions | Marks for a correct answer | Negative marking | Total Marks for the Section |
---|---|---|---|---|

Section I – Single Correct Choice Type | 8 | 3 | – 1 | 24 |

Section II – Multiple Correct answers Type | 4 | 4 | NIL | 16 |

Section III – Integer Answer Type | 6 | 4 | NIL | 18 |

Section IV – Matrix Match Type | 2 | 8 | NIL | 16 |

What was new in IIT-JEE 2011 in comparison with earlier years – Paper 2:

For the first time Multiple Answer Type, Integer Answer Type and Matrix Match Type appeared in one paper.

**Part 1 – Chemistry**

Paper 2 of IIT-JEE 2011 was difficult compared to paper 1. Weightage wise the Physical > Organic > Inorganic formula is maintained. Generally the nature of the questions in Physical chemistry is calculation oriented and hence the difficulty. Also complexity of Organic questions made this paper a challenging one.

**Click Here To IIT JEE 2011 Paper I and Paper II Answer Key**

I expect a total of 85-90 marks . Is there any hope ?