International Chemistry Olympiad (IChO)
IChO has been conducted since 1968, and is a competition for students at the secondary
and higher secondary school levels. The IChO boosts the level of chemistry education
in the participating countries. It helps develop friendly relations between the
young people from different countries.
India started participating in this event from the year 1999 at the 31st IChO held
at Bangkok, Thailand. India hosted the 33rd International Chemistry Olympiad (IChO)
in its third year of participation in 2001 with whole-hearted support of all countries.
The chemistry Olympiad program follows the following 5 stages:
- Stage I: National Standard Examination in Chemistry (NSEC)
- Stage II: Indian National Chemistry Olympiad (INChO)
- Stage III: Orientation cum Selection Camp (OCSC) in Chemistry
- Stage IV: Pre-departure Training Camp (PDT) for IChO
- Stage V: Participation in International Chemistry Olympiad (IChO)
Stage I: National Standard Examination in Chemistry (NSEC)
NSEC is the first stage of selection of students in the chemistry Olympiad Programme
which is organised by the Indian Association of Physics Teachers (IAPT). Every student
aspiring to go through successive stages of the programme must enroll for NSEC.
NSEC is held at a large number of centres in the country.
All Indian students who are born on or after July 1, 1996 and, in addition, are
in Class XII or lower as of November 30, 2015, are eligible to appear for NSEC 2015
- 2016. A student may appear for more than one subject provided the examination
schedule allows it. See information about the examination schedule under various
subjects. Students who have passed Class XII are not eligible to enroll for NSEC.
It is the student's responsibility to ensure that the eligibility criteria are satisfied.
In case at any stage of the programme it is found that the student does not satisfy
the eligibility criteria, he/she may be disqualified from the programme.
Question Paper :
NSEC emphasizes comprehension of the subject, not rote memory. Its format will be
The question paper will consist of 80 multiple choice questions, each with only
one of the four options correct. Language : English.
The syllabus for NSEC is broadly equivalent to the senior secondary level (Class
XI and Class XII) of CBSE Chemistry. This is only a rough guideline, and there is
no detailed syllabus given for NSEC.
Qualifying for Second Stage
The aim of the first stage examination is to have a wide reach, to progressively increase this reach and to attain nationwide representation for Stage II without overly compromising on merit. Hence the selection for the Stage II examinations, i.e., Indian National Olympiad Examinations (INOs) is based on the following scheme.
- Eligibility Clause : To be eligible for the Stage II INO exam leading to the International Olympiad, a candidate must secure a score equal to or greater than a Minimum Admissible Score (MAS). The MAS for a given subject will be 50% of the average of the top ten scores in that subject rounded off to the nearest lower integer.
- Merit Index Clause : There will be a high score called the Merit Index (MI) associated with each subject in Olympiads. The MI in a subject is defined as 80% of the average of the top ten scores in that subject rounded off to the nearest lower integer. All students with a score equal to or greater than merit index MI for the subject will automatically qualify for INO Stage II examination in that subject. For example, if the average of top ten scores in a certain subject is 92, then 80% of this is 73.6. Then the MI in that subject will be 73. All candidates with a score equal to or above 73 in that subject will automatically qualify for INO stage II.
- Proportional Representation Clause : Students from all States and UTs need to be encouraged to appear for the first stage examination and a nationwide representation for INO Stage II is desirable. The quota for each State/UT used in National Talent Search Examination (NTSE) 2013-14, a nationwide competitive examination will be used
as the baseline for calculating the number of students qualifying for Stage II INO in every subject from centres in that State or UT. Suppose the NTSE quota is S for a State, and the total for all States and UTs is T, then the total number of students to be selected to INO Stage II from that State would be S/T times 300, rounded off to the nearest higher integer. This number will include those selected on the basis of the Merit Index. In the event of tie at the last position in the list, all students with same marks at this position will qualify to appear for the INO Stage II examination. The selected students must nevertheless satisfy the eligibility clause. The number to be selected from all the centres in each State or UT will be displayed on the IAPT and HBCSE websites.
( www.iapt.org.in )
- Minimum Representation Clause : Notwithstanding the proportional representation clause the number of students selected for INO from each State and UT must be at least one, provided that the eligibility clause is satisfied.
The above criteria are illustrated with the following examples:
(i). Let the quota on the basis of the Proportional Representation Clause (c) for a State S1 be 20. Suppose the number of students satisfying the Merit Index Clause (b) in a subject is 10. These 10 students will qualify for the second stage INO exam in the given subject and an additional 10 students from the State S1 in the given subject will be selected merit-wise, provided they satisfy the Eligibility Clause (a).
(ii). Let the quota on the basis of the Proportional Representation Clause (c) for a State S1 be 20. Suppose the number of students 7satisfying the Merit Index Clause (b) in a subject is 30. In this case, all 30 students will qualify for the second stage INO exam in the given subject, and there will be no further selection from the State S1.
- Previous International Representation Clause: Candidates who have represented India in the International Olympiad on a previous occasion (IOAA, IBO, IChO, IJSO and IPhO) need not appear for the first stage NSE examination in the respective subject. Candidates who have represented India in the Asian Physics Olympiad (APhO)
and the International Astronomy Olympiad Junior (IAO-Jr) need not appear for the 1st stage NSEP and NSEA Examinations respectively. Those candidates who thus qualify to skip the first stage NSEs may be allowed, on written request, to the respective National Coordinator, to directly appear for the second stage Indian National Olympiad (INO) examination, provided they satisfy other eligibility criteria such as age, pre-college status, etc.
- Minimum Total Number Clause: In each subject, after all the above criteria have been applied, it is possible that the target number of 300 students to be selected for INO is not reached (due to non-availability of enough number of students in some states who satisfy Eligibility Clause (a)). In such an event, additional students will be selected purely merit-wise, provided Eligibility Clause (a) is satisfied, till the target number of 300 is reached. Other clauses will not apply for these students. In case of a tie at the last position, all students with the same marks at this position will qualify to appear for the INO Stage II examination.
There will be no other criterion or provision for selection to the Indian National
Olympiad Examinations (INOs). All students who qualify to appear for INChO get a
certificate of merit from IAPT.
Stage II: Indian National Chemistry Olympiad (INChO)
Eligibility :Students selected from Stage I examination (NSEC) are eligible
to appear for INChO. In addition, those students, who have been exempted from NSEC
as described in the Enrollment page, are also eligible to appear for INChO. Besides
these two, there is no other way by which a student becomes eligible to appear for
Syllabus : The syllabus for INChO is broadly similar to NSEC
On the basis of performance in INChO, the top 35 students in the merit list will
be selected for Stage III: Orientation Cum Selection Camp (OCSC) in Chemistry. In
the event, there is a tie at the last position, all students with the same marks
at this last position will qualify for OCSC.There will be no other criterion or
provision for selection to OCSC.
Stage III: Orientation Cum Selection Camp (OCSC) in Chemistry
OCSC in chemistry will be organized by HBCSE for 2-3 weeks. The precise dates will
be announced prior to or along with the announcement of the selection list for the
Eligibility for OCSC :
Only the students selected from the merit list of Stage II (INChO) are eligible.
There will be no other criteria or provision.
The camps include several theoretical and experimental tests. Orientation is provided
to students especially in experiments. The camps conclude with a valedictory function
where distinguished scientists are invited to speak to the students.
The merit list of OCSC is prepared on the basis of the combined theoretical and
experimental score aggregated over all the tests in the camp, with 60% weightage
for theory and 40% weightage for experiment. Performance in previous stages (NSEC
and INChO) will not be a consideration for the merit list and awards of the OCSC.
The top 4 in the OCSC chemistry merit list are declared to be special merit awardees.
These special merit awardees are given Rs. 5,000/- each in the form of books and
cash. In addition there are special prizes to recognize meritorious performance
in theory and experiments.
The 4 special merit awardees in chemistry selected at the end of the OCSC constitute
the 4 member student team for the International Chemistry Olympiad (IChO), provided
they satisfy required criteria such as age limit, holding valid Indian passport,
medical fitness, parental consent, etc.
Stage IV: Pre-departure Training (PDT) Camp for IChO
The selected 4 member Indian team undergoes a rigorous training programme at HBCSE
in theory and experiments. Special laboratories have been developed at HBCSE for
the purpose of experimental training. Resource persons from HBCSE and different
institutions across the country train the students. The duration of training is
subject to IChO regulations.
Stage V: Participation in International Chemistry Olympiad (IChO)
The 4-member student team, 2 teacher leaders and 1 scientific observer constitute
the delegation to represent India at the International Chemistry Olympiad (IChO).
For First Stage of Olympiad Selection Procedure (National Standard Examinations) in Chemistry:
Prof. M. L. Oglapurkar
Chief Coordinator (IAPT Examinations)
IAPT Office, Sheela Vihar Colony,
7, Heramb Coop HSG Society,
Near Kimaya Hotel, Karve Road,
Kothrud, Pune 411 038
Tel: 0202542 0163; 0202025 2754(O)
For Second and Higher Stages of Olympiad Programmes in Chemistry:
|Prof. Jayashree Ramadas
Chair National Steering Committee
Science and Astronomy Olympiads,
Homi Bhabha Centre for Science Education
V. N. Purav Marg, Mankhurd. Mumbai - 400 088.
Tel: 022 - 2555 5242, 2507 2205
Fax: 022 - 2558 5660, 2556 6803
Email: director [at] hbcse.tifr.res.in
|Prof. Vijay Singh|
Homi Bhabha Centre for Science Education (TIFR)
V.N. Purav Marg, Mankhurd
Mumbai - 400 088.
Tel : 022-2548 2104; 2507 2322
Fax : 022-2556 6635 or 2556 6803
Email: nc_olympiad [at] hbcse.tifr.res.in