JEE

Sorry to say that you should have minimum of 75% or be among top 20 percentile student (Check your board's cutoff marks for being among top 20 percentile) in board exam to be eligible to get admission in B.Arch course at any central college through JEE Main. It doesn't matter if you score 99 Or 99.9999 percentile. First you have to pass the eligibility criteria.

Class 12 Chemistry Aldehydes Ketones and Carboxylic Acids is one of the most important organic chemistry topics in CBSE Class 12 Chemistry and competitive exams like JEE and NEET. The Chapter deals with the structure, properties, preparation, and reactions of aldehydes, ketones, and carboxylic acids.

Organic Chemistry carries around 28-30% weightage in the board exam. Within this NCERT Class 12 Chemistry CH 8 Aldehydes, Ketones, and Carboxylic Acids contributes around 5-8 marks in the CBSE Boards and Other state board exams. 2-3 direct questions (approximately 8-12 marks) appears in JEE Mains from Chapter 8 Class 12 Chemistry.

JEE (Joint Entrance Examination is not a mandatory requirement for admission at NUS. However, exceptional scores do give a positive remark of a student's resume.

Applications without JEE scores are also considered for general applications by the university.

JEE Main is a national-level test accepted by many BTech-offering colleges, including DCRUST. As per the NTAs announcement, the JEE Main Session 1 and 2 exam has already been conducted. 

120 marks means your percentile will be around 94 - 96 so if I predict your rank, which can be around 70 k - 60k so you can get software easily 

Some states conduct their own state exams, like COMEDK, WBJEE, KCET, etc. Some private colleges take their respective exams too. Like VIT, BITs etc., and also mostly colleges accept JEE Mains. But some also accept CUET or take direct admission.

For JEE Mains, there are city intimation and exam date provided before the admit card. There you can check the exam date and city. After this, the admit card is issued to you from where you can see the exact Exam centre.

For JEE Advanced Same process is there.

But, you need to know that admit cards are issued 2-3 days before the exam.

So, first check the city information and prepare accordingly.

Your rank should fall between 2.5 to 3 Lacs based on your 73.15 percentile position in JEE Mains when you belong to the SC category. The CSE or ECE admission to NITs is determined by yearly fluctuating cutoff criteria. Under the SC category admission to CS/ECE programs at lower-ranked NITs tends to be reachable through closing ranks between 1.5 to 2 lakh. The Home State quota grants you admission possibilities in NIT Mizoram and NIT Arunachal Pradesh and NIT Nagaland although your expected rank remains at 2.5 to 3 lakh. Seeing previous year cutoffs lets you determine your specific admission possibility.