jee_main_2025_03_april_evening - Organic Chemistry - Some Basic Principles and Techniques Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #36 Dumas' Method for Nitrogen Estimation
In Dumas' method for estimation of nitrogen 0.4mathrm~g of an organic compound gave 60mathrm~mL of nitrogen collected at 300mathrm~K temperature and 715mathrm~mm~Hg pressure. The percentage composition of nitrogen in the compound is : (Given: Aqueous tension at 300mathrm~K = 15mathrm~mm~Hg)
Start Practice →
QUESTION #40 Hyperconjugation and Cation Stability
Given below are two statements: Statement I: Hyperconjugation is not a permanent effect. Statement II: In general, greater the number of alkyl groups attached to a positively charged C-atom, greater is the hyperconjugation interaction and stabilization of the cation. In the light of the above statements, choose the correct answer from the options given below :
Start Practice →
QUESTION #0 IUPAC Nomenclature of Multi-substituted Benzenes
What is the correct IUPAC name of the compound given below? {{IMG1}}
Start Practice →
QUESTION #0 Stoichiometry of Nitration
Xmathrm~g of nitrobenzene on nitration gave 4.2mathrm~g of m-dinitrobenzene. The value of X is ________ mathrmg. (nearest integer) [Given: molar mass (in mathrmg~mol^-1 ) C: 12, H: 1, O: 16, N: 14]
Start Practice →
QUESTION #0 Isomerism in Benzene Derivatives
The total number of structural isomers possible for the substituted benzene derivatives with the molecular formula mathrmC_9mathrmH_12 is ________.
Start Practice →
Rankbit System
JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)
YOUR FIRST PREP STEP STARTS HERE

We Map Every Repeating Question in Competitive Exams.

Say goodbye to generic mock test fatigue. RankBit uses smart analysis to group past exam questions into their foundational Repeating Question Types. Find chapter weightage, track repeating questions, and score higher with targeted practice.

Select Your Target Exam

Choose an exam track below to find formulas per chapter and patterns.

Syncing Exam Intelligence

Mapping formulas and patterns across all tracks…

PATH A — FULL LENGTH PRACTICE

Full Mock Test Hub

Simulate real NTA exam conditions with fully tracked mocks. Time yourself against past papers.

Now Live Open
PATH B — TARGETED PRACTICE

Topic-wise Practice Hub

Practice past-year questions one chapter at a time. Pick an exam → subject → chapter and get every PYQ for that topic — pulled together from all past papers — with the chapter's key formulas alongside.

Loading Questions... Browse Topics
Latest from the Blog
View all →

Loading articles...